Razor MX350 Dirt Rocket Electric Bike Owner’s Manual

September 28, 2024
Razor

Razor MX350 Dirt Rocket Electric Bike

Product Specifications

  • Models : MX350, SX350, MX400
  • Weight Limit : 140 lb (64 kg)
  • Top Speed : Approximately 14 mph (22 km/h)
  • Parent Controlled Speed : High-Low switch with speeds of 10 mph (16 km/h) and 14 mph (22 km/h)
  • Rider Age : 13+ for high-speed setting, 8+ for low-speed setting

Product Usage Instructions

Safety Warnings
It is important to adhere to the following safety guidelines:

  • Do not exceed the weight limit of 140 lb.
  • Always obey local laws and regulations regarding where the product can be used.
  • Do not activate the speed control unless in a safe outdoor environment.
  • Maintain a hold on the handlebars at all times.
  • Avoid excessive speeds and ride defensively.
  • Parent-controlled high/low speed switch can be set for novice riders.
  • Avoid stunts or tricks on the product.

Before You Begin
Follow these steps before using the product:

  1. Remove contents from the box.
  2. Inspect for any damage during shipping.
  3. Check for scratches, dents, or kinked cables.

Frequently Asked Questions (FAQ)

  • Q: What should I do if I exceed the weight limit?
    A: It is crucial to adhere to the weight limit for safety reasons. Exceeding the weight limit may result in loss of control and accidents. Please ensure only riders within the specified weight range use the product.

  • Q: Can I perform stunts or tricks on the product?
    A: No, the product is not designed for stunts or tricks. Doing so can lead to damage to the product, loss of control, and potential injuries. Please ride responsibly and follow all safety guidelines provided in the manual.

MX350, SX350 AND MX400

OWNER’S MANUAL

  • Read and understand this entire manual before allowing child to use this product! For assistance contact Razor. DO NOT RETURN TO STORE.
  • NOTE: Manual illustrations are for demonstration purposes only. Illustrations may not reflect exact appearance of actual product. Specifications subject to change without notice.
  • Please have your product along with the 19 character product I.D. code with you before contacting Razor for warranty assistance and/or replacement parts.
  • Product I.D. Code: _____________

SAFETY WARNINGS

  • WARNING: Riding an electric product does present potential risks and caution is required. Like any riding product, the MX350/SX350/MX400 has inherent hazards associated with its use (for example, falling off or riding it into a hazardous situation). Like any riding product, the MX350/SX350/MX400 can and is intended to move and it is therefore, of course, possible to lose control or otherwise get into dangerous situations. Both children, and adults responsible for supervising them, must recognize that
    if such things occur, a rider can be seriously injured or die even when using safety equipment and other precautions. RIDE AT YOUR OWN RISK AND USE COMMON SENSE.

  • WARNING: PARENTAL AND ADULT RESPONSIBILITY AND SUPERVISION IS NECESSARY:

  • This manual contains important safety information. It is your responsibility to review this information and make sure that all riders understand all warnings, cautions, instructions and safety topics, and assure that young riders are able to safely and responsibly use these products. Razor recommends that you periodically review and reinforce the information in this manual with younger riders, and that you inspect and maintain your children’s product to ensure their safety.

  • Because products, like the MX350/SX350/MX400, can and do present potential hazards plainly associated with their use, it is well recognized

  • THE NEED FOR EXERCISE OF PARENTAL RESPONSIBILITY IN SELECTING RIDING PRODUCTS APPROPRIATE TO THE AGE OF A CHILD, OR PARENTAL SUPERVISION IN SITUATIONS IN WHICH CHILDREN OF VARIOUS AGES MAY HAVE ACCESS TO THE SAME RIDING PRODUCTS, IS IMPORTANT. Not every product is appropriate for every age or size of child, and different age recommendations are found within this category of product which are intended to reflect the nature of the hazards and the expected mental or physical ability, or both, of a child to cope with the hazards.

  • Razor recommends that children under the age of 8 not be permitted to use the MX350/SX350/MX400. This recommendation is based not just on age or weight or height – it reflects consideration of expected maturity and skills as well as physical size. The recommended rider age of 8 years or older
    for MX350/SX350/MX400 is only an estimate and can be affected by the rider’s size, weight or skills – not every child 8 years old will be suited to the MX350/SX350/MX400.

  • WARNING: PARENT CONTROLLED HIGH/LOW SPEED SWITCH: The MX350/SX350/MX400 has a HIGH-LOW speed switch which can be manually set by an adult before children ride it. This switch allows parents to reduce the MX350/SX350/MX400 speed for novice riders. See page 5.

  • Manufacturer’s suggested minimum rider age is 13+ in the HIGH speed setting and 8+ in the LOW speed setting. The default setting is HIGH.

  • The recommended rider age of eight (8) years or older for the MX350/SX350/MX400 is only an estimate and can be affected by the rider’s size, weight or skills. . Any rider unable to fit comfortably on the electric product should not attempt to ride it. A parent’s decision to allow his or her child to ride this product should be based on the child’s maturity, skill and ability to follow rules. Razor  emphasizes that adults are strongly advised not to disregard Razor’s recommendations or permit younger children to ride the MX350/SX350/MX400.

  • Keep this product away from small children and remember that it is intended for use only by persons who are, at a minimum, completely comfortable and competent while operating the product.

  • WARNING: Riding an electric product does present potential risks and caution is required. Like any riding product, the MX350/SX350/MX400 has inherent hazards associated with its use (for example, falling off or riding it into a hazardous situation). Like any riding product, the MX350/SX350/MX400 can and is intended to move and it is therefore, of course, possible to lose control or otherwise get into dangerous situations. Both children, and adults responsible for supervising them, must recognize that
    if such things occur, a rider can be seriously injured or die even when using safety equipment and other precautions. RIDE AT YOUR OWN RISK AND USE COMMON SENSE.

  • WARNING: PARENTAL AND ADULT RESPONSIBILITY AND SUPERVISION IS NECESSARY:

  • This manual contains important safety information. It is your responsibility to review this information and make sure that all riders understand all warnings, cautions, instructions and safety topics, and assure that young riders are able to safely and responsibly use these products. Razor recommends that you periodically review and reinforce the information in this manual with younger riders, and that you inspect and maintain your children’s product to ensure their safety.

  • Because products, like the MX350/SX350/MX400, can and do present potential hazards plainly associated with their use, it is well recognized

  • THE NEED FOR EXERCISE OF PARENTAL RESPONSIBILITY IN SELECTING RIDING PRODUCTS APPROPRIATE TO THE AGE OF A CHILD, OR PARENTAL SUPERVISION IN SITUATIONS IN WHICH CHILDREN OF VARIOUS AGES MAY HAVE ACCESS TO THE SAME RIDING PRODUCTS, IS IMPORTANT. Not every product is appropriate for every age or size of child, and different age recommendations are found within this category of product which are intended to reflect the nature of the hazards and the expected mental or physical ability, or both, of a child to cope with the hazards.

  • Razor recommends that children under the age of 8 not be permitted to use the MX350/SX350/MX400. This recommendation is based not just on age or weight or height – it reflects consideration of expected maturity and skills as well as physical size. The recommended rider age of 8 years or older
    for MX350/SX350/MX400 is only an estimate and can be affected by the rider’s size, weight or skills – not every child 8 years old will be suited to the MX350/SX350/MX400.

  • WARNING: PARENT CONTROLLED HIGH/LOW SPEED SWITCH: The MX350/SX350/MX400 has a HIGH-LOW speed switch which can be manually set by an adult before children ride it. This switch allows parents to reduce the MX350/SX350/MX400 speed for novice riders. See page 5.

  • Manufacturer’s suggested minimum rider age is 13+ in the HIGH speed setting and 8+ in the LOW speed setting. The default setting is HIGH.

  • The recommended rider age of eight (8) years or older for the MX350/SX350/MX400 is only an estimate and can be affected by the rider’s size, weight or skills. . Any rider unable to fit comfortably on the electric product should not attempt to ride it. A parent’s decision to allow his or her child to ride this product should be based on the child’s maturity, skill and ability to follow rules. Razor emphasizes that adults are strongly advised not to disregard Razor’s recommendations or permit younger children to ride the MX350/SX350/MX400.

  • Keep this product away from small children and remember that it is intended for use only by persons who are, at a minimum, completely comfortable and competent while operating the product.

  • Never allow more than one person at a time to ride the electric product.

  • Do not ride at night or when visibility is limited.

  • Never use near steps or swimming pools.

  • Do not allow hands, feet, hair, body parts, clothing, or similar articles to come in contact with moving parts, wheels, drivetrain, or chain while the motor is running.

  • Never use headphones, a cell phone or text when riding.

  • Never hitch a ride with a vehicle.

  • Do not ride your electric product in wet or icy weather and never immerse the product in water, as the electrical and drive components could be damaged by water or create other possibly unsafe conditions. Never risk damaging surfaces, such as carpet or flooring, by use of an electric product indoors.

PROPER RIDING ATTIRE
Always wear proper protective equipment, such as an approved safety helmet (with chin strap securely buckled), elbow pads and kneepads. A helmet may be legally required by local law or regulation in your area. A long-sleeved shirt, long pants, and gloves are recommended. Always wear athletic shoes (lace-up shoes with rubber soles) and keep shoelaces tied and out of the way of the wheels, motor and drive system. Never ride barefooted or in sandals.

USING THE CHARGER

  • The charger supplied with the electric product should be regularly examined for damage to the cord, plug, enclosure and other parts. In the event of such damage, the product must not be charged until the charger has been repaired or replaced.
  • Use only with the recommended charger.
  • Use caution when charging.
  • The charger is not a toy. Charger should be operated by an adult.
  • Do not operate charger near flammable materials.
  • Unplug charger and disconnect from product when not in use.
  • Always disconnect from the charger prior to wiping down and cleaning your electric product with damp cloth.
  • FAILURE TO USE COMMON SENSE AND HEED THE ABOVE WARNINGS FURTHER INCREASES RISK OF SERIOUS INJURY. USE AT YOUR OWN RISK AND WITH APPROPRIATE AND
  • SERIOUS ATTENTION TO SAFE OPERATION. USE CAUTION.

BEFORE YOU BEGIN

Remove contents from box. Remove the separators that protect the components from damage during shipping. Inspect the contents of the box for scratches in the paint, dents or kinked cables that may have occurred during shipping. Because the electric product is 95 percent assembled and packed at the factory, there should not be any problems, even if the box has a few scars or dents.
MAKE SURE POWER SWITCH IS TURNED “OFF” BEFORE CONDUCTING ANY ASSEMBLY OR MAINTENANCE PROCEDURES.

Estimated Assembly and Set-Up Time
Razor recommends assembly by an adult.
Allow up to 15 minutes for assembly.
Allow up to 12 hours for initial charge (see page 6 for charging information).

Required Tools

  • 4 mm Allen Wrench (not included), 5 mm Allen Wrench and 6 mm Allen Wrench (included)
  • 10 mm Wrench (included)

WARNING:DO NOT USE NON-RAZOR PRODUCTS WITH YOUR RAZOR ELECTRIC PRODUCT. The electric product has been built to certain Razor design specifications. The original equipment supplied at the time of sale was selected on the basis of its compatibility with the frame, fork and all other parts. Certain aftermarket products may not be compatible and will void your warranty.

Product ID Locations:
(See locations to the left)

  1. Underneath Frame
  2. Charger
  3.  Battery Cover
  4. UPC Side of Box (not shown)

Plastic Bag Contents :

  • Charger
  • Tools
  • Handlebar Clamps
  • Owner’s Manual

Need Help? Visit our website for replacement parts, product support, a list of authorized service centers in the US and customer service contact information at www.razor.com. Please have the product I.D. code (located on the white label of your product) available for better assistance. Additional Customer Service contact information is listed at the back of this manual.

ASSEMBLY AND SET-UP

Attaching the Handlebars
Required Tool: 6 mm Allen Wrench (included)

  1. Place the handlebars in the handlebar clamps.
  2. Align parallel to the fork and tighten the bolts using a 6 mm Allen wrench. When properly tightened, the handlebars should not move forward or backward.

Attaching the Front Fender

Required Tools : 5 mm Allen Wrench and 10 mm Wrench (included)

Align fender with the hole in the fork and insert the bolt. Tighten securely using a 10 mm wrench and 5 mm Allen wrench.

Attaching the Number Plate Slip the cables through the slit on the top of the number plate. Align the holes on the fork and snap on the number plate.

WARNING:
Failing to properly adjust and tighten the bolts that affix the handlebars can cause you to lose control and crash.

Inflating the Tires
Tires are inflated when shipped, but they invariably lose some pressure between the point of manufacturing and your purchase. Inflate the tires to the correct PSI before first time use.
Lower air pressure can result in a shorter ride time. Periodically check front tire. Reinflate when needed.
Using a bicycle style pump equipped for a Schrader-type valve, inflate both tires to the PSI indicated on the sidewall of the tire.

WARNING:
Do not use the electric product for the first time until you have inflated the tires to the correct PSI. Failure to do so may damage your motor bike and void your warranty.

WARNING:
Do not overinflate, as this could damage the tire or wheel.

Note: The pressurized air supplies found at gasoline stations are designed to inflate high-volume automobile tires. If you decide to use such an air supply to inflate your tires, first make sure the pressure gauge is working, then use very short bursts to inflate to the correct PSI. If you inadvertently overinflate the tire, release the excess pressure immediately.

Parent Controlled HIGH/LOW Speed Switch

  • Required Tool: Phillips Screwdriver (not included)
  • The MX350/SX350/MX400 features a speed control switch that allows parents to discreetly reduce (or raise) the MX350/SX350/MX400’s top speed. This limiter is intended for parents of younger children and those needing extra practice time to learn how the MX350/SX350/MX400 moves. It is recommended that all riders use the LOW setting while learning how to operate the
  • MX350/SX350/MX400. Once the rider is comfortable with using the MX350/SX350/MX400 in the LOW setting, and has acquired the necessary skills to safely ride the MX350/SX350/MX400, the parent has the option to change the setting to the HIGH setting.
  • The switch is inside the MX350/SX350/MX400’s speed control switch cover, such that riders cannot access it without using a Phillips screwdriver. There are two settings:
  • When the switch is in the HIGH position (A), the MX350/SX350/MX400 has a top speed of 14 mph (22 km/h). This is the default setting and recommended for riders age 13 and older.
  • When the switch is in the LOW position (B), the MX350/SX350/MX400’s top speed is limited to 10 mph (16 km/h) and the recommended minimum rider age is 8 years old.

Note : The speed switch is located near the charger port.

  1.  Using a Phillips screwdriver, remove the two (2) screws from the speed switch cover and set aside.
  2. Move the switch to the left for HIGH speed mode (A) or to the right for LOW speed mode (B).
  3. Rotate the cover so the arrow is facing the direction of the selected speed setting and replace the two (2) screws with a Phillips screwdriver.

CHARGING THE BATTERY

Your electric product may not have a fully charged battery; therefore you must charge the battery prior to use.

  • Initial charge time: 12 hours
  • Recharge time: up to 12 hours, even if the light turns green. Recommended maximum charging time is 24 hours.
  • Always charge the battery immediately after riding.
  • Fully charge battery before storing for extended periods of time.
  • Unplug charger from the wall outlet when not in use.
  • Failure to recharge battery periodically may result in a battery that will not accept a charge.
  • Make sure the electric product’s power switch is turned OFF when unit is not in use. If the power switch is left on for an extended period of time, the battery may reach a stage at which it will no longer hold a charge.
  • To ensure long battery life, never store the product in freezing or below freezing temperatures! Freezing will permanently damage the battery.
  • Run time: Up to 30 minutes of continuous ride time. Run time may vary depending on riding conditions, climate and/or proper maintenance.
  • Constant stopping and starting may shorten ride time.
  •  Battery life can vary depending on proper maintenance and usage of the unit.

Note : Make sure power is turned OFF when unit is not in use. If the power switch is left on for an extended period of time, the battery may reach a stage at which it will no longer hold a charge.

  1. Plug the charger plug into a wall outlet. The light on the charger should be green.
    Note : If green light (LED) does not turn on, try a different outlet.

  2. Make sure the power switch is in the OFF position. Plug the charger into the charger port on the product. The light on the charger should turn red during charging. The light will turn green when the charging is complete.

WARNING:

  • Use ONLY with the recommended charger. Batteries are only to be charged under adult supervision. The charger is not a toy. Always disconnect the charger before wiping down and/or cleaning the electric product with a damp cloth.
  • The charger supplied with the electric product should be regularly examined for damage to the cord, plug, enclosure and other parts.
  • In the event of such damage, the electric product must not be charged until it has been repaired or replaced.
  • Chargers have built-in overcharge protection to prevent battery from being overcharged.
  • Note: If the charger gets warm during regular use, this is a normal response and is no cause for concern. If your charger does not get warm during use, it does not mean that it is not working properly.
  • Wall outlet – Green (stand by)
  • Wall outlet and Unit – Red (Charging) Charging complete – Green (Charged)
  • Note: Continue charging unit even if light turns green prior to 12 hours.
  • WARNING: Failure to recharge the battery at least once a month may result in a battery that will no longer accept a charge.

PRE-RIDE CHECKLIST

  • Brake
    Check the brake for proper function. When you squeeze the brake lever, the brake should provide positive braking action. When you apply the brake with the speed control on, the brake cut-off switch will stop the motor.

  • Tires
    Periodically inspect the tires for excess wear and replace as needed. Regularly check the tire pressure and inflate as needed. If you get a flat tire, the inner tube can be patched or a new tube can be purchased from Razor or an authorized repair center.

  • Frame, Fork and Handlebars
    Check for cracks or broken connections. Although broken frames are rare, it is possible for an aggressive rider to run into a curb or object and wreck, bend or break the frame. Get in the habit of inspecting your product on a regular basis.

  • Hardware/Loose Parts
    Before every ride, check all parts, such as nuts, bolts, cables, fasteners, etc., to ensure they are secure and assembled correctly. There should not be any unusual rattles or sounds from loose parts or broken components. If the unit is damaged, do not ride. Reference “Safety Warnings” on pages 1 and 2 of this manual.

  • Safety Gear
    Always wear proper protective gear, such as an approved safety helmet. Elbow pads, kneepads, pants and long sleeves are recommended. Always wear closed toe shoes (lace-up with rubber soles) and keep shoelaces tied and out of the way of the wheels, motor and drive system. NEVER RIDE BAREFOOTED OR IN SANDALS.

  • Laws and Regulations
    Always check and obey any local laws or regulations.

  • Insurance
    Do not assume that your existing insurance policies necessarily provide coverage for electric product use. Check with your insurance company for information regarding insurance.

  • Storage
    Prolonged exposure to UV rays, rain and the elements may damage the enclosure materials, store indoors when not in use.

USAGE

Starting the Electric Product

  • Place both hands on the handlebars. Slowly push forward with one foot and apply the throttle (A).
  • Note : Keep both feet on the foot pegs when unit is in motion.

Stopping the Electric Product

  • Release the throttle (A) and apply the brake, by squeezing brake lever (B).
  • Note : When coming to a complete stop, place both feet on the ground to balance the unit.

REPAIR AND MAINTENANCE

Turn power switch “OFF” before conducting any repair or maintenance procedures.

  • Read the instructions.
  • Remove charger plug.
  • Turn the power switch OFF.
  • Exercise caution around exposed parts.
  • Contact Razor customer service if unsure about any repair or maintenance.
  • Repair and maintenance should be performed by an adult only.
  • Secure the product under repair.

Testing the Brake
To use the brake, squeeze the brake lever to increase the pressure on the brake. The brake lever is fitted with a cable adjuster to compensate for cable stretch and/or to fine-tune the lever movement to engage the brake. If brake is not engaging properly, follow instructions for adjusting the brake outlined below.

Adjusting the Brake
Required Tool: 10 mm Wrench (included)

  1. To adjust the tension, thread the brake lever adjuster in or out 1/4 to 1/2 turn until the desired brake adjustment is attained. Most adjustments are complete at this step. If brake still needs further adjustment, proceed to step 2.
  2. If the brake has too much slack, use a 10 mm wrench to loosen the brake anchor cable for additional adjustment and retighten.

WARNING:
The brake is capable of causing the electric product to skid the tire, throwing an unsuspecting rider. Practice in an open area free from obstacles until you are familiar with the brake function. Avoid skidding to a stop as this can cause you to lose control or damage the rear tire.

Note: The brake lever contains a safety switch to cut power to the motor when the brake is applied. In an emergency, applying the brake will always stop the product from moving. Do not disable or replace this lever with anything other than a genuine Razor replacement part.

Chain and Rear Wheel  Replacement
Required Tools: 10 mm Wrench (included), Phillips Screwdriver, Two (2) 8 mm Wrenches, and Two (2) 15 mm Wrenches (not included).

  1. Using a Phillips screwdriver remove the screws on chain guard. Remove chain guard and set aside.
  2. Using a 10 mm wrench, loosen the brake cable anchor bolt and disconnect the cable
  3. Using two (2) 8 mm wrenches,V remove the cable guide bracket from the frame and brake plate. Keep the spacer and washers together.
  4. Using two (2) 15 mm wrenches, loosen the axle. Push the chain tensioner down to loosen the chain and remove wheel.
  5. Install the chain onto the rear wheel sprocket. Slip wheel axle into the frame slots. Push the chain tensioner down to create slack in chain. Hand tighten rear axle locknuts.
  6. Verify chain is properly installed on each sprocket and tensioner is correctly positioned at the bottom of the chain.
  7. Using a Phillips screwdriver, screw chain guard back into place
  8. Install the cable guide bracket to the frame and brake plate using bolt, washers, and nut. Do not tighten.
  9. Thread the brake cable through the brake adjuster barrel, through the large spring, and into the small hole in the side of the anchor bolt. Position the cable to the original location (as indicated by the slight cable kink) and tighten securely, using an 8 mm wrench.
  10. Using an 8 mm wrench, tighten the cable guide bracket bolt. Tighten the locknuts on the rear axle. Test the brake to verify proper function before riding. Readjust as needed

Note the hardware sequence (from outside toward the center).

  • Left Side (Brake)
    • 17-1 15 mm Flange Locknut
    • 17-2 Flat Washer
  • Frame
    • 17-2 Plate Cut Washer
    • 17-3 Brake Plate
  • Right Side (Throttle)
    • 17-1 15 mm Flange Locknut
    • 17-2 Flat Washer
  • Frame
    • 17-2 Flat Washer

Front Wheel Replacement
Required Tools: Phillips Screwdriver and 15 mm Wrench (not included)

  1. Using a Phillips screwdriver, loosen the two (2) screws on the fork covers (2 per side). Remove covers and set aside.
  2. Remove the nuts on both sides of the front axle using a 15 mm wrench then remove the axle safety washers.
  3. Remove front wheel and install replacement wheel. Re-attach fork covers.

Replacing the Fuse
Required Tool: 5 mm Allen Wrench (included) and 4 mm Allen Wrench (not included)

  1. Using a 5 mm Allen wrench, remove the bolt
  2. Using a 5 mm Allen wrench, loosen the two (2) bolts underneath the rear of the seat and remove the fairing. Set fairing aside.
  3. In the battery cover side without the charger port, locate and remove the six (6) bolts using a 4 mm Allen wrench. Separate and remove battery cover. Set battery cover aside.
  4. Locate the fuse box attached to the batteries. Open the fuse cover to expose the fuse.
  5. Remove the fuse and replace with a new one of equal amperage. Close the fuse cover and reattach the battery cover and fairing.

WARNING:
To prevent shock, please follow the instructions accordingly and do not skip or combine any steps.

WARNING : Risk of fire–no user serviceable electrical system.

Battery Care and Disposal

Do not store in freezing or below freezing temperatures. To properly maintain your battery and ensure maximum battery life, carefully read the “Charging the Battery” section on page 6 of this owner’s manual.
CONTAINS SEALED NON-SPILLABLE LEAD-ACID BATTERIES. BATTERIES MUST BE RECYCLED.

Disposal: Your Razor product uses sealed lead-acid batteries which must be recycled or disposed of in an environmentally safe manner. Do not dispose of a lead-acid battery in a fire. The battery may explode or leak. Do not dispose of a lead-acid battery in your regular household trash. The incineration, land filling or mixing of sealed lead-acid batteries with household trash is prohibited by law in most areas. Return exhausted batteries to a federal or state approved lead-acid battery recycler or a local seller of automotive batteries. If you live in Florida or Minnesota, it is prohibited by law to throw away lead-acid batteries in the municipal waste stream.

Charger
The charger supplied with the product should be regularly examined for damage to the cord, plug, enclosure and other parts and in the event of such damage, the product must not be charged until it has been repaired or replaced.
Use ONLY with the recommended charger.

Wheels
Wheels and drive system are subject to normal wear and tear. It is the responsibility of the user to periodically inspect wheels for excess wear and adjust and replace drive train components as required.

Replacement Parts
The most frequently requested replacement parts are available for purchase at some Razor retail partners. For the complete selection of replacement parts visit www.razor.com.

Authorized Service Centers
For a list of authorized Razor repair centers:

  • Check online at www.razor.com.
  • Additional Customer Service contact information is listed on the back of this manual.

In the US and Canada only:
For more information regarding recycling of rechargeable batteries, call toll free 1-800-822-8837, or visit http://www.call2recycle.org

WARNING: If a battery leak develops, avoid contact with the leaking acid and place the damaged battery in a plastic bag. Refer to the disposal instructions at left. If acid comes into contact with skin or eyes, flush with cool water for at least 15 minutes and contact a physician.
WARNING: Battery posts, terminals and related accessories contain lead and lead compounds. Wash your hands after handling.

TROUBLESHOOTING GUIDE

*Product(s) should be turned OFF and fully charged prior to doing any Troubleshooting.
NOTE: All troubleshooting steps should be performed by an adult only.

Problem Possible Cause Solution
Electric product does not run
  • Undercharged battery
  • Loose wires or connectors Burned out Fuse

|

  • Charge the battery. A new battery should have been charged for at least 12 hours before using the electric product for the first time and up to 12 hours after each subsequent use.
  • Check all connectors. Make sure the charger connector is tightly plugged into the charging port, and that the charger is plugged into the wall.
  • Make sure power flow to the wall outlet is on.
  • Check all wires and connectors to make sure they are tight.
  • The fuse will burn out and automatically shut off the power if the motor is overloaded.

Electric product was running but suddenly stopped| Burned-out fuse|

  • An excessive overload, such as too heavy a rider or too steep a hill, could cause the motor to overheat. Replace the fuse with a new one of equal amperage (Refer to page 10 of this manual). Correct the conditions that caused the fuse to burn out and avoid repeatedly burning out fuse.
  • Contact your local Razor authorized service center for diagnosis and repair.

Short run time (less than 15 minutes per charge)|

  • Motor or electrical switch damage
  • Undercharged batteryTires are not properly inflated
  • Battery is old and will not accept full charge
  • Brake is not adjusted properly

|

  • Charge the battery. A new battery should have been charged for at least 12 hours before using the electric product for the first time and up to 12 hours after each subsequent use.
  • Check all wires and connectors. Make sure the battery connector is tightly plugged into the charger connector, and that the charger is plugged into the wall.
  • The tires are inflated when shipped but they invariably will lose some pressure between the point of manufacturing and your purchase. Refer to instructions on page 5 of this manual to properly inflate tires.
  • Even with proper care, a rechargeable battery does not last forever. Average battery life is 1 to 2 years depending on product use and conditions. Replace only with a Razor replacement battery.
  • Refer to brake adjustment instructions on page 7 of this manual.

Electric product runs sluggishly|

  • Riding conditions are too stressful Tires are not properly inflated
  • Electric product is overloaded

|

  • Use only on solid, flat, clean and dry surfaces, such as pavement or level ground.
  • The tires are inflated when shipped, but they invariably will lose some pressure between the point of manufacturing and your purchase. Refer to instructions on page 5 of this manual to properly inflate tires.
  • Make sure you do not overload the electric product by allowing more than one rider at one time, exceeding the maximum weight limit, going up too steep a hill or towing objects behind the product.

Sometimes the product doesn’t run, but other times it does| Loose wires or connectors

Motor or electrical switch damage

| Check all wires around the motor and all connectors to make sure they are tight.

Contact your local Razor authorized service center for diagnosis and repair.

Electric product does not stop when applying the brake| Brake is not adjusted properly| Refer to instructions on page 7 of this manual to properly adjust brake.
Electric product makes loud noises or grinding sounds| Chain is too dry| Apply a lubricant such as 3 in 1™ or Tri-Flow™ to the chain.
For more troubleshooting tips, a list of available replacement parts or to locate an authorized Service Center in your area, visit our website at www.razor.com or call toll free +1 866 467 2967 to speak to a live Customer Service Representative

MX350/SX350/MX400 PARTS

Keep your MX350/SX350/MX400 running for years with genuine Razor parts. Visit our website or e-mail us for more information on spare part availability. (Specifications subject to change without notice.)

  1. Handlebar Grip (Right/Left)
  2. Single-Speed Twist-Grip Throttle 2-1 Sleeve
  3. Handlebar
  4. Number Plate
  5. Brake Lever Assembly
  6. Handlebar Clamp (Upper/Lower)
  7.  Front Fender
  8. Fork Cover (Right/Left)
  9. Front Wheel Complete
  10. Battery Cover (Right/Left)
  11. Charger Port
  12. Battery
  13. Kickstand
  14. Motor
  15. Rear Wheel Complete
  16. 1 Brake Plate
  17. Chain
  18. Chain Guard
  19. Seat w/Body Fairing Complete 18-1 Seat
  20. On/Off Switch
  21. Chain Tensioner
  22. Control Module
  23. Speed Switch
  24. 1 Speed Switch Cover

NOTICE : INSURANCE
YOUR INSURANCE POLICIES MAY NOT PROVIDE COVERAGE FOR ACCIDENTS INVOLVING THE USE OF THIS SCOOTER/ELECTRIC RIDE-ON PRODUCT. TO DETERMINE IF COVERAGE IS PROVIDED, YOU SHOULD CONTACT YOUR INSURANCE COMPANY OR AGENT.

FCC COMPLIANCE

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

  1. This device may not cause harmful interference, and
  2. This device must accept any interference received, including interference that may cause undesired operation.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.

  • If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
    • Reorient or relocate the receiving antenna.
    • Increase the separation between the equipment and receiver.
    • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
    • Consult the dealer or an experienced radio/TV technician for help.

WARNING: Changes or modifications to this unit not expressly approved by Razor USA, could void the user’s authority to operate the equipment.

WARRANTY

Razor Limited Warranty
The manufacturer warranties this product to be free of manufacturing defects for a period of 90 days from date of purchase. This Limited Warranty does not cover normal wear and tear, tire, tube or cables, or any damage, failure or loss caused by improper assembly, maintenance, storage or use of the Razor MX350/SX350/MX400.
This Limited Warranty will be void if the product is ever:

  • used in a manner other than for recreation or transportation;
  • modified in any way;
  • rented.

The manufacturer is not liable for incidental or consequential loss or damage due directly or indirectly to the use of this product.
Razor does not offer an extended warranty. If you have purchased an extended warranty, it must be honored by the insurance provider from which it was purchased.
For your records, save your original sales receipt with this manual and write the serial number below.

CUSTOMER SERVICE CONTACT INFORMATION

Need Help? Visit our website for product support, a list of authorized service centers in the US and customer service contact information at www.razor.com. Please have the product I.D. code (located on the white label of your product) available for better assistance. Additional Customer Service contact information is listed below:

AMERICAS

  • Razor USA LLC P.O. Box 3610 Cerritos, CA 90703 USA
  • +1 866 467 2967
  • Monday – Friday
  • 8:00 AM – 5:00 PM Pacific Time
  • customersupport@razorusa.com

EUROPE, MIDDLE

  • EAST, AFRICA Razor USA LLC (Europe)  Handelsweg 2
  • 2742 RD Waddinxveen
  • Netherlands
  • +44 (0) 120 267 2702
  • info@razoreu.com
  • ASIA Razor USA LLC (Asia) P.O. Box 3610 Cerritos, CA 90703
  • USA
  • +81 50 7579 6622
  • info@razor-asia.com

UNITED KINGDOM AND IRELAND

  • Razor USA LLC (UK) Unit 20 Hartnoll Business Centre Post Hill, Tiverton Devon EX16 4NG

  • UK

  • +44 (0) 120 267 2702

  • info@razoreu.com

  • AUSTRALIA AND NEW ZEALAND
    Razor USA LLC P.O. Box 4280 Auburn South VIC 3122

  • Australia

  • +1 800 954 354 (AU)

  • +0 800 003 221 (NZ)

  • info@razoranz.com

  • IMPORTED IN JAPAN BY B-PLUS ASIA CORP.

  • Razor USA LLC Kurokawa 3-1, Asaoku, Kawasaki, Kanagawa

  • 215-0035 JAPAN

  • +81 (0) 44 328 9057 Tel

  • +81 (0) 44 328 9067 Fax

  • info@razor-asia.com

Printed in China for Razor USA LLC.
Copyright ©2003-2024 Razor USA, LLC. All rights reserved. Razor® and the Razor logo design are among the registered trademarks of Razor USA LLC in the United States and/or select foreign countries. Dirt Rocket™ and the Dirt Rocket logo design are trademarks of Razor USA LLC.

References

Read User Manual Online (PDF format)

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