CubCadet 159cc, 196cc and 224cc OHV Vertical Shaft Engines Instruction Manual

159cc, 196cc and 224cc OHV Vertical Shaft Engines
Instruction Manual

Record Product Information
Before setting up and operating your new engine, please locate the model plate and record the information in the provided area to the right.
You can locate the model plate by standing at the operator’s position and looking at the rear or right side of the engine. This information will be necessary, should you seek technical support via our website, Customer Support Department, or with a local authorized service dealer.

Model Number———–
Serial Number———–

WARNING
Read and follow all safety rules and instructions in this manual before attempting to operate.
Failure to comply with these instructions may result in personal injury – SAVE THESE INSTRUCTIONS.

WARNING
CALIFORNIA PROPOSITION 65
Engine exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
NOTE: This Operator’s Manual covers several models. Features may vary by model. Not all features in this manual are applicable to all models and the model depicted may differ from yours.

Form No. 769-26224 (August 19, 2021)

SAFE OPERATION PRACTICES

WARNING
This symbol points out important safety instructions which, if not followed, could endanger the personal safety and/or property of yourself and others. Read and follow all instructions in this manual before attempting to operate. Failure to comply with these instructions may result in personal injury. When you see this symbol, HEED ITS WARNING!

DANGER
This engine was built to be operated according to the safe operation practices in this manual. As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury. Failure to observe the following safety instructions could result in serious injury or death.

TRAINING

1. Read, understand and follow all warnings and instructions on the engine and the equipment, and in the operator’s manual before attempting to install and/or operate. Keep this manual in a safe place for future and regular reference and for ordering replacement parts.
2. Be familiar with all controls and their proper operation. Know how to stop the engine and disengage them quickly.
3. Never allow children under 14 years of age to operate the equipment. Children 14 and over should read and understand the warnings and instructions both on the product and in the manuals and be trained and supervised by an adult.
4. Never allow adults to operate the equipment without proper instruction.
5. Keep the area of operation clear of all persons, particularly small children, and pets. Stop the engine if anyone enters the area.

PREPARATION

1. Wear sturdy, rough-soled work shoes and close-fitting slacks and shirts. Loose-fitting clothes or jewelry can be caught in the moving parts. Never operate the equipment in bare feet or sandals.
2. Disengage all powered clutch and drive control levers on the equipment before starting the engine.
3. Never leave the engine running while unattended.
4. Never attempt to make any adjustments while the engine is running, except where specifically recommended in the operator’s manual(s).

SAFE HANDLING OF GASOLINE:
To avoid personal injury or property damage, use extreme care in handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Serious personal injury can occur when gasoline is spilled on yourself and/or your clothes which can ignite. Wash your skin and change clothes immediately.

1. When adding fuel, turn the engine OFF and let the engine cool for at least 5 minutes before removing the fuel cap.

2. Fill the fuel tank outdoors or in a well-ventilated area.

3. Use only an approved fuel container.

4. Never fill containers inside a vehicle or on a truck or trailer bed with a plastic liner. Always place containers on the ground away from your vehicle before filling.

5. If possible, remove equipment from the truck or trailer and refuel it on the ground. If this is not possible, then refuel equipment on a trailer with a portable container,  rather than from a fuel pump dispenser nozzle.

6. Keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete. Do not use a nozzle lock-open device.

7. Do not overfill the fuel tank. Fill the tank to full as indicated by the fuel level indicator installed inside the fuel tank to allow space for fuel expansion. On some models, a fuel level indicator may NOT be present, in this instance, fill the tank no more than 1/2 inch below the bottom of the filler neck to allow space for fuel expansion.

8. Replace the fuel cap and tighten it securely.

9. If fuel is spilled, wipe it off the engine and the equipment.
   Move equipment to another area and wait 5 minutes before starting the engine.

10. To reduce fire hazards, keep the engine and equipment free of grass, leaves, or other debris build-up. Clean up oil or fuel spillage and remove any fuel-soaked debris.

11. Keep fuel away from sparks, open flames, pilot lights, heat, and other ignition sources.

12. Never fuel equipment indoors because flammable vapors will accumulate in the area.

13. Extinguish all cigarettes, cigars, pipes, and other sources of ignition.

14. Check the fuel line, tank, cap, and fittings frequently for cracks or leaks. Replace if necessary.

OPERATION

1. When starting the engine, make sure the spark plug, muffler, and fuel cap are in place.

2. Do not crank the engine with the spark plug removed.

3. If fuel is spilled, wipe it off the engine and the equipment.
   Move equipment to another area and wait 5 minutes before starting the engine.

4. Allow the engine and muffler to cool before touching.

5. Keep small children away from hot or running engines. They are unaware of the dangers and can suffer burns from the engine and muffler.

6. Remove any accumulated debris from the engine cylinder and muffler areas.

7. Operate equipment with all shields and guards in place.

8. Keep hands and feet away from rotating parts.

9. Wear sturdy, rough-soled work shoes and close-fitting slacks and shirts. Loose-fitting clothes, jewelry, and long hair can be caught in moving parts. Shirts and pants that cover the arms and legs and steel-toed shoes are recommended.

10. When starting the engine with the recoil starter, pull handle slowly until resistance is felt, then pull rapidly, repeat if necessary.

11. Remove all equipment engine loads before starting the engine.

12. Directly coupled equipment components such as, but not limited to blades, impellers, pulleys, sprockets, etc., must be securely attached.

MAINTENANCE & STORAGE

1. Keep the engine and equipment in safe working condition.
2. Allow the engine to cool for at least 5 minutes before storing equipment. Never tamper with safety devices. Check their proper operation regularly.
3. Check bolts and screws for proper tightness at frequent intervals to keep the engine and equipment in safe working condition. Visually inspect them for any damage.
4. Before cleaning, repairing, or inspecting; stop the engine and make certain all moving parts have stopped. Disconnect the spark plug wire and ground it against the engine to prevent unintended starting.
5.  Do not change the engine governor settings or over-speed the engine. The governor controls the maximum safe operating speed of the engine.
6. Maintain and replace safety and instruction labels as necessary.
7. Always refer to the operator’s manuals for important details if the equipment is to be stored for an extended period of time.
8. If the fuel tank has to be drained, do this outdoors.
9. Observe proper disposal laws and regulations for fuel, oil, etc. to protect the environment.

DO NOT MODIFY THE ENGINE
To avoid serious injury or death, do not modify the engine in any way. Tampering with the governor setting can lead to a runaway engine and cause it to operate at unsafe speeds.  Never tamper with the factory setting of the engine governor.
NOTICE REGARDING EMISSIONS
Engines that are certified to comply with California and federal EPA emission regulations for SORE (Small Off Road Equipment) are certified to operate on regular unleaded gasoline and may include the following emission control systems: Engine Modification (EM), Oxidizing Catalyst (OC), Secondary Air Injection (SAI) and Three Way Catalyst (TWC) if so equipped.

INTENDED USE:
The engine models listed on the cover of this manual are specifically designed and intended for use on designated outdoor power equipment only. The engine models listed also have been approved for use as replacement engines for products such as mowers, edgers, and wheeled string trimmers. These engines are not approved for use in other applications. Engines used in non-approved applications or subjected to any modifications or misuse will void the engine warranty.
WARNING
Failure to use an engine as intended and as instructed may lead to property damage, personal injury or death.

ENGINE REPLACEMENT:
Please check your equipment specifications for important specific engine information, such as engine size (cc), type of shaft (horizontal or vertical) crankshaft dimensions,  mounting bolt pattern, engine speed (rpm), oil capacity, fuel tank size, controls (throttle/choke), starting (recoil or electric), shut down capabilities, accessory wiring needs and other emission related specifications.

SPARK ARRESTOR
WARNING
Any equipment equipped with an internal combustion engine should not be used on or near any unimproved forest-covered, brush-covered, or grass-covered land unless the engine’s exhaust system is equipped with a spark arrestor meeting applicable local or state laws (if any).

If a spark arrestor is used, it should be maintained in effective working order by the operator. In the State of California, the above is required by law (Section 4442 of the  California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark arrestor for the muffler is available through your nearest engine-authorized service dealer or contact the service department, P.O. Box 361131 Cleveland, Ohio 44136-0019.

SAFETY SYMBOLS

This page depicts and describes safety symbols that may appear on the engine. Read, understand, and follow all warnings and instructions on the engine and equipment, along  with the operator’s manuals before attempting to install and/or operate it.

Read, understand and follow all the safety rules and instructions in the manual(s) and on the equipment before attempting to operate. Failure to comply with this information may result in personal injury or death. Keep the manual(s) in a safe location for future and regular reference.
| DANGER — CARBON MONOXIDE
Never run an engine indoors or in a poorly ventilated area. Engine exhaust contains carbon monoxide, an odorless and deadly gas.
| DANGER — ELECTRICAL SHOCK
Do not use the engine’s electric starter in the rain.
| WARNING—GASOLINE IS FLAMMABLE
Allow the engine to cool at least 5 minutes before refueling.
| WARNING— AVOID BURN INJURY
The muffler and engine become very hot and can cause serious burn injuries.
Do not touch.  Allow the equipment to cool for at least 5 minutes before storing or attempting any service.

WARNING
Your Responsibility—Restrict the use of the equipment to persons who read, understand, and follow all warnings and instructions on the engine and the equipment, and in the operator’s manuals. – SAVE THESE INSTRUCTIONS!

SET-UP

Fuel & Oil
NOTE: The engine is shipped without fuel or oil in the engine.
Running the engine with insufficient oil can cause serious engine damage and void the engine warranty.
WARNING
Always keep hands and feet clear of equipment moving parts. Do not use a pressurized starting fluid. Vapors are flammable.
OIL RECOMMENDATIONS
Before starting the engine, fill it with motor oil, the capacity is 600 ml/20 oz. Refer to the viscosity chart in Figure 1 for oil recommendations.
Do not over-fill. Use a 4-stroke, or an equivalent high detergent, premium quality motor oil certified to meet or exceed U.S. automobile manufacturer’s requirements for service classification of a minimum level SJ (higher letter ratings are acceptable such as SL and SM grades). Motor oil will display this designation on the container.
SAE 10W-30 is recommended for general, all-temperature use. If single- viscosity oil is used, select the appropriate viscosity for the average temperature in your area from the chart below.

1. Single Viscosity
2. Multi-Viscosity

CAUTION
Do not use non-detergent oil or 2-stroke engine oil. It could shorten the engine’s service life.
NOTE: A 5w30 synthetic oil may be used to improve start ability for cold weather (temperatures below 40 ° F).

CHECKING OIL LEVEL/ADDING OIL
IMPORTANT: Be sure to check the oil while on a level surface with the engine off.
To avoid engine damage, it is important to:

• Check oil level before each use and every 5 operating hours when the engine is warm. Check oil levels more frequently during engine break-ins.
• Keep oil at the upper limit on the dipstick (Figure 2 inset).
• Be sure oil fill cap is tightened securely when checking.
  1. Remove the oil fill cap and wipe the dipstick clean (Figure 2).
  2. Insert the oil fill cap into the oil fill neck and securely fasten.
  3. Loosen and remove the oil fill cap from the oil fill neck. Note the oil level, if the oil reading on the dipstick is below the upper limit, slowly add oil to reach the upper limit (Figure 2 inset).
  4. Replace the oil fill cap into the oil fill neck and securely fasten it before starting the engine.
  NOTE: Do not overfill. Overfilling with oil may cause smoking, hard starting, spark plug fouling, or oil saturation of air cleaners.
  NOTE: To change the oil on your engine, see Oil Change on page 10.

FUEL REQUIREMENTS
CAUTION
Operating the engine with E15 or E85 fuel, an oil/gasoline mixture, dirty gasoline, or gasoline over 30 days old without a fuel stabilizing additive may result in damage to your engine’s carburetor. Subsequent damage would not be covered under the manufacturer’s warranty.
Use automotive gasoline (unleaded or low leaded to minimize combustion chamber deposits) with a minimum of 87 octanes.
Gasoline with up to 10% ethanol (E10) or 15% MTBE (Methyl Tertiary Butyl Ether) can be used. Never use an oil/gasoline mixture or dirty gasoline. Avoid getting dirt, dust,  or water in the fuel tank. DO NOT use E15 or E85 gasoline.
WARNING
Gasoline is extremely flammable and is explosive under certain conditions.

• Refuel in a well-ventilated area with the engine off and allowed to cool. Do not smoke or allow flames or sparks in the area where the engine is refueled or where gasoline is stored.

• Do not overfill the fuel tank. After refueling, make sure the fuel cap is closed properly and securely.

• If fuel is spilled, wipe it off the engine and the equipment.
  Move equipment to another area and wait 5 minutes before starting the engine.

• Avoid repeated or prolonged contact with skin or breathing of vapor.

ADDING FUEL
WARNING
An adult should fuel this engine. NEVER allow children to refuel the engine. Gasoline (Fuel) vapors are highly flammable and can explode. Fuel vapors can spread and be ignited by a spark or flame many feet away from the engine. To prevent injury or death from fuel fires, follow these instructions:
NOTE: Some engines may not have the fuel cap installed for shipping purposes. To install, remove and discard the fuel tank dust cap labeled “Discard”. Remove the bubble wrap packaging from around the fuel cap and tighten it securely.

• DO NOT use leaded fuel.
• Fuel must be fresh and clean. NEVER use fuel left over from last season or stored for long periods.
• NEVER mix oil with fuel.
• DO NOT use fuel containing Methanol (Wood Alcohol).
• Fill the fuel tank outdoors or in a well-ventilated area.

NOTE: Before refueling, allow the engine to cool for at least 5 minutes.

1. Clean the area around the fuel fill cap and remove the fuel cap.

2. Use an approved red GASOLINE container, add fuel slowly, being careful to avoid spilling. DO NOT overfill fuel tank.

3. Fill the tank to full as indicated by the fuel level indicator inside the fuel tank if equipped or to no more than 1/2 inch below the bottom of the fill neck to allow space for fuel expansion.

4. Replace the fuel cap and tighten it securely. Wipe up spilled fuel before starting the engine. If fuel is spilled DO NOT start the engine.
   Move the machine away from the area of spillage. Avoid creating any source of ignition until fuel vapors are gone.

5. Be sure the fuel shut-off valve, if present, is in the “ON” position.

OPERATION

Features

A. FUEL CAP
Remove the fuel cap to add fuel.
NOTE: Some engines may not have the fuel cap installed for shipping purposes. To install, remove and discard the fuel tank dust cap labeled “Discard”. Remove the bubble wrap packaging from around the fuel cap and tighten it securely.
B. RECOIL STARTER HANDLE
Pull the recoil starter handle to start the engine.
C. OIL FILL CAP
Remove the oil fill cap to check the oil level and add oil (short dipstick shown).
D. MODEL PLATE
The model plate provides the model number and a serial number of the engine. Record this information in the area provided on the cover of this manual. This information will be necessary for proper technical support.
E. OIL DRAIN PLUG
Removing the oil drain plug will drain the oil from the engine.
The engine is equipped with a side drain.
NOTE: Select engines are equipped with an oil drain plug located on the rear of the engine.
F. SPARK PLUG
Refer to Spark Plug Service on page 11.
G. AIR CLEANER
Refer to Air Filter Service on page 11.
H. FUEL SHUT-OFF VALVE (IF EQUIPPED)
If equipped, controls the flow of fuel between the fuel tank and carburetor, used for transport/storage.
I. CHOKE (IF EQUIPPED)
Activating the choke closes the choke plate on the carburetor and aids in starting the engine.
J. ENGINE SWITCH (IF EQUIPPED)
The engine switch is located on the rear of the engine. Turn the switch “ON” when starting the engine and turn it to “OFF” to shut it down.
K. BOOST MODE (IF EQUIPPED)
Used to temporarily increase engine power and speed when mowing areas of thicker or taller grass.
L. ELECTRONIC GOVERNOR CONTROL (IF EQUIPPED)
Used to Switch between high or low-speed settings based on the required performance.

Pre-Operation Check
The engine is shipped without fuel or oil in the engine. See the Set-Up section of this manual for instructions on adding oil and fuel.
Determine The Starting System
Before starting the engine, you must determine the type of starting system that is on your engine. Your engine will have one of the following types:

• Auto-Choke With Recoil or Electric Start System: This features an automatic choke that does not have a manual choke or primer.
• Auto-Choke with Drive Control and Recoil or ElectriStart System: This features an automatic choke and a recoil electric start.
• Manual Choke System: This features a choke on the engine and no primer. Choke systems located on the engine will feature an engine switch and may also feature a fuel shut-off valve.
  To start your engine, follow the instructions for your type of starting system.

NOTE: Equipment may have remote controls. See the equipment operator’s manual for the location and operation of remote controls.

Starting the Engine
WARNING
Always keep hands and feet clear of equipment moving parts. Do not use a pressurized starting fluid. Vapors are flammable.
AUTO-CHOKE WITH RECOIL OR ELECTRIC START SYSTEM

1. Electric Start Units Only – Insert the plastic electric starter push key into the starter housing located on the right side of the upper handle until it snaps in place (Figure 4).
2. Standing behind the mower, pull the blade control handle back against the upper handle (Figure 4).
3. Perform one of the following:
   • Recoil Start: While holding the blade control handle and upper handle together firmly, pull the recoil starter handle lightly until resistance is felt, then pull rapidly to overcome compression, prevent kickback, and start the engine. Repeat if necessary.
   IMPORTANT: Do not allow the recoil starter handle to snap back against the rope guide. Return it gently to prevent damage to the starter.
   • Electric Start (If Equipped): Push the electric starter push key to start the engine (Figure 4).

NOTE: Electric starter is equipped with an internal circuit breaker. If the unit fails to start when the starter button is depressed, wait one minute for the breaker to reset, then attempt to start again.

AUTO-CHOKE WITH DRIVE CONTROL AND RECOIL OR ELECTRIC START SYSTEM

1. Electric Start units only – Insert the plastic electric starter push key into the starter housing located on the right side of upper handle until it snaps in place.
2. Standing behind the mower, pull the blade control back against the drive control (Figure 4).
3. Perform one of the following:
   • Recoil Start: While holding the blade and drive controls together firmly, pull the recoil starter handle lightly until resistance is felt, then pull rapidly to overcome compression, prevent kickback, and start the engine. Repeat if necessary (Figure 4).
   IMPORTANT: Do not allow the recoil starter handle to snap back against the rope guide. Return it gently to prevent damage to the starter.
   • Electric Start (If Equipped): Push the electric starter push key to start the engine (Figure 5).
   NOTE: Electric starter is equipped with an internal circuit breaker. If the unit fails to start when the starter button is depressed, wait one minute for the breaker to reset, then attempt to start again.

MANUAL CHOKE SYSTEM

1. If equipped, ensure the fuel shut-off valve (a) is in the “ON” position (Figure 6).

2. Pull out the choke knob (b) located on the engine.
   NOTE: Use of the choke may not be necessary if the engine is warm or the air temperature is high.

3. Press engine switch (c) to “ON”.

4. Pull the recoil starter handle lightly until resistance is felt, then pull rapidly to overcome compression, prevent kickback and start the engine. If the engine does not start after ten seconds of repeated pulls, wait 5 minutes and repeat.
   IMPORTANT: Do not allow the recoil starter handle to snap back against the rope guide. Return it gently to prevent damage to the starter.

5. When the engine warms up, push in the choke knob.

Stopping Engine

1. Release the blade control or turn off the engine switch (if equipped).

2. (Electric Start units only) Remove Electric Starter Push Key if the mower is to be left unattended, stored, or serviced.
   To remove the key, grasp the key’s top push button and pull it straight up and out. Keep the key in a safe place out of the reach of children.
   Boost mode
   NOTE: Quiet mode is engaged when the boost mode lever is in the up position.

3. With the engine running, Perform one of the following:
   • Engaging Boost Mode – Push the boost mode lever down to the engaged (BOOST) position.
   • Disengaging the Boost Mode – Lift the boost mode lever up to the disengaged (QUIET) position.

Electronic Governor Control (If Equipped)
NOTE: The electronic governor control (governor switch) is used to select the engine speed. Engine speed can be set with or without the engine running.

1. Perform the following to select engine speed (Figure 8):
   a. Low Speed – Press the governor switch towards the mower to select the LOW- SPEED setting.
   b. Hi-Speed – Press the governor switch away from the mower to select the HI- SPEED setting.
   Electronic Governor Control (Governor Switch)

SERVICE AND MAINTENANCE

WARNING
Shut off the engine before performing any maintenance. To prevent accidental start-up, remove the safety key (if equipped), disconnect the spark plug wire and ground against the engine.
General Recommendations
If the engine must be tipped to transport equipment, inspect or remove grass, keep the spark plug side of the engine up. Transporting or tipping the engine spark plug down may cause smoking, hard starting, spark plug fouling, or oil saturation of the air cleaner.
Periodic inspection and adjustment of the engine is essential to maintaining engine performance and service life.
Required service intervals and maintenance are described in the table below. Follow the hourly or calendar intervals as listed. More frequent service is required when operating in adverse conditions.

WARNING
If the engine has been running, the muffler will be very hot. Allow the engine and muffler to cool before performing any maintenance.
Maintenance Schedule

Service| First 5
Hours| Each Use
or Every 5
Hours.| Every
Season or
25 Hours| Every
Season or
100 Hours| Service
Dates
---|---|---|---|---|---
Check Engine Oil Level| | ✓| | |
Change Engine Oil x| ✓| | | ✓|
Check Air Cleaner| | ✓| | |
Service Air Cleaner ‘ <| | | | ✓|
Check Spark Plug| | | ✓| |
Replace Spark Plug| | | | ✓|
Clean Engine Shroud| | ✓| | |
Clean around muffler| | ✓| | |
Replace Fuel Filter| | | | ✓|

• Every season or 25 hours if operating under heavy load or high ambient temperature.
  ** Service more frequently when used in dusty areas.

Oil Service

• Check oil level regularly.
• Be sure the correct oil level is maintained. Check every five hours or daily before starting the engine. See Checking Oil Level/AddingOil on page 5.

Oil Change
WARNING
Before tipping the engine or equipment to drain oil, drain fuel from the tank by running the engine until the fuel tank is empty.
IMPORTANT: Be sure to check the engine on a level surface with the engine stopped. Drain the oil while the engine is still warm to assure rapid and complete draining.

1. emove all fuel from the tank by running the engine until it stops from lack of fuel.

2. Remove oil drain plug (a) and allow oil to drain into a suitable container (Figure 9).
   NOTE: Select engines are equipped with an oil drain located on the rear of the engine.
   

3. Reinstall the drain plug and tighten it securely.

4. Refill with the recommended oil and check the oil level. See Oil Recommendations and Checking Oil Level/Adding Oil on page 5.

5. Reinstall the oil fill cap securely.

IMPORTANT: Used motor oil may cause skin cancer if repeatedly left in contact with the skin for prolonged periods. Although this is unlikely unless you handle used oil on a  daily basis, it is still advisable to thoroughly wash your hands with soap and water as soon as possible after handling used oil.
NOTE: Please dispose of used engine oil in a manner that is compatible with the environment. We suggest you take it in a sealed container to your local service station or auto parts store for recycling. Do not throw it in the trash or pour it on the ground.
Air Filter Service

WARNING
Never use gasoline or low flash point solvents for cleaning the air filter element. A fire or explosion could result.
Paper filters cannot be cleaned and must be replaced once a year or every 100 operating hours; more often if used in extremely dusty conditions.
IMPORTANT: Never run the engine without the air filter. Rapid engine wear will result.

1. Press down on the tabs (a) securing the air filter cover (b). Pull back and remove the cover (Figure 10).
   

2. Remove the paper element (c). To loosen debris, gently tap the filter on a hard surface. If the filter is excessively dirty or damaged, replace it with a new filter.

3. Insert the cover’s bottom tabs into slots at the bottom of the base.

4. Tilt the cover-up into place and secure it with tabs.

Spark Plug Service

WARNING
If the engine has been running, the muffler will be very hot. Allow the engine and muffler to cool before performing any maintenance.
WARNING
DO NOT check for spark with the spark plug removed. DO NOT crank the engine with the spark plug removed.
To ensure proper engine operation, the spark plug must be properly gapped and free of deposits.

1. Remove the spark plug boot (a) and use a spark plug wrench to remove the spark plug (b) (Figure 11).
   

2. Visually inspect the spark plug. Discard the spark plug if there is apparent wear, or if the insulator is cracked or chipped. Clean the spark plug with a wire brush if it is to be reused.

3. Measure the plug gap with a feeler gauge. Correct as necessary by bending side electrode (c) (Figure 12). The gap should be set to 0.030 in (0.76mm).
   

4. Check that the spark plug washer is in good condition and thread the spark plug in by hand to prevent cross-threading.

5. After the spark plug is seated, tighten it with a spark plug wrench to compress the washer.
   NOTE: When installing a new spark plug, tighten 1/2 turn after the spark plug seats to compress the washer. When reinstalling a used spark plug, tighten 1/8-1/4 turn after the spark plug seats to compress the washer.
   IMPORTANT: The spark plug must be securely tightened. An improperly tightened spark plug can become very hot and may damage the engine.

Fuel Filter Service
The fuel filter cannot be cleaned and must be replaced once a year or every 100 operating hours; more often if run with old gasoline.

1. Remove all fuel from the fuel tank by running the engine until it stops from lack of fuel.

2. Remove the hose clamp from the fuel line and remove the fuel line from the tank outlet (Figure 13).
   

3. Pull out the old fuel filter from the tank outlet. Replace when dirty or damaged.

4. Grasp the new fuel filter from the shouldered end and insert it completely to the shoulder into the fuel tank outlet (Figure 13).

5. Replace the fuel line and hose clamp.

Clean Engine
If the engine has been running, allow it to cool for at least half an hour before cleaning. Periodically remove dirt build-up from the engine.
Clean the finger guard and around the muffler.
Clean with a brush or compressed air.
IMPORTANT: Do not spray the engine with water to clean it because water could contaminate the fuel. Using a garden hose or pressure washing equipment can also force water into the air cleaner or muffler opening. Water in the air cleaner will soak the paper element, and water that passes through the element or muffler can enter the cylinder, causing damage.
WARNING
Accumulation of debris around the muffler could cause a fire. Inspect and clean before every use.

Removing From Storage

1. Check your engine as described in Pre-Operation Check on page 8.

2. If the fuel was drained during storage preparation, fill the fuel tank with fresh fuel. If you keep a container of gasoline for refueling, make certain it contains only fresh fuel.
   Gasoline oxidizes and deteriorates over time, causing hard starting.

3. If the cylinder was coated with oil during storage preparation, the engine will smoke briefly at startup. This is normal.

TROUBLESHOOTING

2. Spark plug boot disconnected.
3. Fuel tank empty or stale fuel.
4. Fuel shut-off valve closed (if equipped).
5. Engine not primed (if equipped with primer).
6. Faulty spark plug.
7. Reduced fuel flow/Blocked fuel filter.
8. Engine flooded.
9. Engine not choked (if equipped with choke).| 1. Engage blade control.
2. Connect a wire to the spark boot.
3. Fill the tank with clean, fresh gasoline.
4. Turn on the fuel shut-off valve.
5. Prime engine as instructed in the Operation
section.
6. Clean, adjust the gap, or replace it.
7. Replace the fuel filter as instructed in the
Maintenance section.
8. Wait a few minutes to restart, but do not
prime.
9. Choke engine.
Engine fails to start with electric starter
(Electric Start Units Only)| 1. Electric starter push key is not fully inserted.
2. Battery not charged.
3. Circuit breaker tripped.| 1. Insert the electric starter push key into the starter housing until it snaps into place.
2. Charge the battery. See the Service section of the equipment Operator’s Manual.
3. Debris may be blocking blade operation. Stop the engine, remove the electric starter push key, and disconnect the spark plug boot. Verify grass or other debris is not obstructing the blade. Carefully clean out debris if necessary. Reattach the spark plug boot and reinsert the electric starter push key. Wait one minute after tripping for the circuit breaker to automatically self-reset then reattempt start.
Engine runs erratic| 1. Spark plug boot loose.
2. Reduced fuel flow/Blocked fuel filter.
3. Vent in gas cap plugged (if equipped).
4. Water or dirt in the fuel system.
5. Dirty air cleaner.
6. Unit running with CHOKE (if equipped) applied.| 1. Connect and tighten the spark plug boot.
2. Replace the fuel filter as instructed in the Service and Maintenance section.
3. Clear vent.
4. If necessary use a fuel siphon to drain the fuel tank. Refill with fresh fuel.
5. Refer to Service and Maintenance section.
6. Push the CHOKE knob in.
Engine overheats| 1. Engine oil level low.
2. Air flow restricted.| 1. Fill the crankcase with proper oil.
2. Clean the area around and on top of the engine.
Occasional skips (hesitates) at high speed| 1. Spark plug gap is too close.| 1. Adjust the gap to .030″.
Idles poorly| 1. Spark plug fouled, faulty, or gap too wide.
2. Dirty air cleaner.| 1. Reset the gap to .030″ or replace the spark plug.
2. Refer to Service and Maintenance section.
Engine stalls with a full tank| 1. Carbon filter in the fuel cap is dirty or blocked (if
equipped).| 1. Replace the fuel cap.

REPLACEMENT PARTS

951-14632A No Oil Change Feature (If Equipped)
| 751-15255 Fuel Cap Assembly
| 951-12296 Fuel Filter

THE EZ START PROMISE
PROVISIONS OF YOUR LIMITED WARRANTY
In addition to the other terms and conditions of the Limited Warranty applicable to your new mower, MTD LLC (“MTD”) hereby warrants that your mower’s engine will start on the first or second attempt by an able-bodied adult (subject to the limitations described below) for the duration of the manufacturer’s limited warranty applicable to your product.
If the engine on your mower fails to conform to this limited warranty, MTD will cover the cost of parts and labor associated with any adjustments and/or repairs necessary to return your engine to its warranted condition. In order to make a claim under these provisions of your warranty, you must bring the product and proof of purchase to an authorized MTD service provider. In many cases, the retailer who sold you your mower is not equipped to provide warranty service, so please locate the authorized service dealer nearest you by either calling the phone number provided in your Operators Manual or looking up an authorized service dealer online at www.mtdproducts.com.

ITEMS AND CONDITIONS NOT COVERED
The EZ Start Promise does not cover and/or apply to the following:

• Cost of regular maintenance service or parts, such as filters, fuel, lubricants, oil changes, spark plugs, air filter, blade sharpening, worn blades, cable/linkage adjustments, or brake and clutch adjustments
• Transportation costs to and from an authorized MTD service provider
• Any engine used for commercial, rental, institutional, governmental, or non-residential applications
• Any product or part that has been altered or misused or required replacement or repair due to misuse, accidents, or lack of proper maintenance
• Repairs necessary due to improper battery care, electrical supply irregularities, or failure to properly prepare the mower prior to any period of non-use over three months
• Pickup and/or delivery charges
• Operational misuse, neglect, accidents, unauthorized repairs or attempted repairs of the engine or its components by anyone other than an authorized MTD service provider.
• Repairs or adjustments to correct starting difficulties due to any of the following: failure to follow proper maintenance procedures — rotary mower blade striking an object  — contaminants in the fuel system — improper fuel or fuel/oil mixture (consult your Operator’s Manual if in doubt) — failure to drain the fuel system prior to any period of non-use over three months.
• Any starting problem which results from the use of inappropriate fuels, lubricants, or additives.
• Special conditions or circumstances that normally require more than two pulls to start, specifically: 1) First start-up following your initial purchase, 2) first time starts after an extended period(s) of non-use over one month or seasonal storage, 3) cool temperature starts such as those found in early spring and late autumn, and 4) difficult starting that results from the operator’s failure to follow the proper starting procedures identified in the Operator’s Manual. If you are having difficulty starting your unit, please check the Operator’s Manual to ensure that you are using the correct starting procedures. This can save an unnecessary visit to a Service Dealer.

OWNER RESPONSIBILITIES
You must maintain your mower (including its engine) by following the maintenance procedures and starting instructions described in the Operator’s Manual. Such routine maintenance, whether performed by a dealer or by you, is at your expense.
In addition, please retain your proof of purchase and service receipts as these may be required to validate a claim.

GENERAL CONDITIONS
An authorized MTD service provider using approved replacement parts must perform all repairs covered by the EZ Start Promise.
Repair by an MTD-authorized service dealer is your sole remedy under this warranty. MTD is not liable for indirect, incidental, or consequential damages in connection with the use of the products covered by these warranties, including any cost or expense of providing substitute equipment or service during reasonable periods of malfunction or non- use pending completion of repairs under this warranty.
Some states do not allow exclusions of incidental or consequential damages, or limitations on how long an implied warranty lasts, so certain exclusions and limitations may not apply to you.

159 cc, 196 ccs and 224 cc
OHV Vertical Shaft Engines

Documents / Resources

| CubCadet 159cc, 196cc and 224cc OHV Vertical Shaft Engines [pdf] Instruction Manual
159cc 196cc and 224cc OHV Vertical Shaft Engines, 159cc OHV Vertical Shaft Engines, 196cc OHV Vertical Shaft Engines, 224cc OHV Vertical Shaft Engines, OHV Vertical Shaft Engines, OHV Engines, Vertical Shaft Engines, Shaft Engines, Vertical Engines, Engines
---|---

References

• MTD Products CA
• MTD Parts | The leader in outdoor power equipment parts. FREE Shipping on Orders Over $50!

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>