KODLin K66024 Lowering Kit for Harley Davidson User Manual
- June 3, 2024
- KODLin
Table of Contents
K66024 Lowering Kit for Harley Davidson
User Manual
K66024 Lowering Kit for Harley Davidson
Stock rear shock removal:
NOTE: We recommend the use of Kodlin Compression Tool K66030 for easier
installation.
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Securely raise the motorcycle at the rear section of the frame and jack it up enough that the rear wheel is slightly off the ground.
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Remove seat, upper frame crossmember and battery side cover (right side).
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Set preload for rear shock to lowest setting.
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Unbolt the suspension adjustment knob from the frame (if applicable).
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Open cable guide and push cables aside.
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Loosen clamp bolt of the lower shock bolt.
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Remove upper and lower shock bolts and remove the shock. You may need to raise or lower the bike to provide proper clearance for shock removal.
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Remove lower shock mount with a shock tool. We suggest using the Kodlin shock compression tool p/n K66030.
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Carefully compress shock spring until you can get to the locknut next to the shock mount.
Tip: A properly sized deep socket on a long extension helps to hold the shock end while loosening the locknut on the bottom or you can also put that end of the shock in a vise as well. -
Loosen locknut, unscrew the shock mount, and remove mount and all three plates on top of the spring. You should be removing 4 parts in total as seen in picture. You will need to loosen the compression on the shock spring to remove the washer against the spring. This part is shown on far left in picture.
Kodlin lowering kit assembly and shock installation:
NOTE: All stock bolts must be installed with blue Loctite® (or equivalent
medium strength thread locker).
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Thread the Kodlin lowering mount onto shock shaft.
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Tighten the lock nut against the shock mount and firmly tighten to lock mount in place.
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Align both upper and lower shock mounts so mounting holes will line up with the frame.
WARNING: Keep fingers away from pinch points when releasing spring compression. Carefully release compression on the shock spring making sure spring and components are properly seated in place and centered. If not, compress spring until you can realign parts, then release compression again. -
Remove bearing bushing from removed stock mount.
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Add grease to the stock shock bearing bushing and O-Rings of the Kodlin mount.
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Install bearing bushing into the Kodlin mount.
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Reinstall the shock and the suspension adjustment knob. Torque the upper shock bolt to 80-90 ft/lbs. (108122Nm), the lower shockbolt 70-75 ft/lbs. (95-100Nm).
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Tighten the clamp bolt of the lower shock bolt to 12-15 ft/lbs. (16-20Nm).
Note: For FXDRS the stock mounting bolts for lower shock mount may slightly hit the Kodlin mount. If that is the case replace the bolt with a button head version to provide the needed clearance.
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Install upper frame crossmember, battery side cover and seat.
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Adjust the rear shock preload. Check “Owner´s Manual“ for details.
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Verify that all hardware is securely tightened prior to going on a test ride.
NOTE: No warranty coverage is provided by Kodlin that is due to improper
installation or lack of maintenance. Periodic maintenance and inspection are
required. It is the installer’s responsibility to ensure that all the
fasteners are tightened before operation of the motorcycle. We recommend
following the Mfg.’s torque specs.
Which type of M8 shock do I have and what is correct lowering kit
part number?
- Shock “A” above has a mounted pre-load adjuster on the shock itself. You need a HD shock tool or shock spanner wrench to rotate silver ring. It has numbered square holes to indicate adjustment level. This shock uses Kodlin part number K66025.
- Shock “B” above has a remotely mounted pre-load adjuster. This has the adjuster knob you turn by hand and sticks out of right side cover. It has numbered lines to indicate adjustment level. This shock will use Kodlin part number K66024.
- Shock “C” above also has a remotely mounted pre-load adjuster. This adjuster is mounted under the seat and mounts to frame cross member above the shock. It takes a HD tool or 5/16” socket to adjust shaft on left end of the cyclinder. It has lines along the shaft to indicate adjustment level. This shock also uses Kodlin part number K66024.
Your factory service manual or user manual should explain how to adjust pre- load for your weight.
Installation Instructions
Step by step pictures using Kodlin Spring Compression Tool #K66030 while installing Kodlin Lowering kit with external pre-load adjuster #K66024
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1. This is the top plate used for installing #K66024. There is no notch. Your tool should be assembled as shown in picture on right. Lightly oil or grease the top 2-3 inches of threads where top plate will be installed. Seen as dark ends of threaded rods in picture. -
Set the shock into the tool with the top plate off and let the external pre-load adjuster hang over the edge.
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Install the tool’s top plate and center the shock to the center of plate. It should look like this. Now you can install the tools washers and nuts and snug up.
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At this point clamp the tool’s bottom ring into vise to help hold tool and shock. Carefully tighten the nuts down 1-2 turns at a time. Note: this picture is of another style of shock. Do this until the locknut is exposed enough to get a wrench on it.
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You can use a deep socket to hold the shock end while loosening the locknut. You could also hold shock end in a vise and loosen locknut. Once shock end is loose, unscrew it from the shock rod. If the rod spins run the locknut down on the rod and hold it while removing the shock end.
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This is what you see after removing the shock end and the first plate under it. In this picture the locknut is removed but it does not need to come off. The tool’s top plate will need to be loosened to remove this last spacer on top of the spring. Once removed you are ready to start the install process.
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Install tool’s top plate. You can use this removed cup to keep spring in alignment with the tool’s top plate while compressing the spring. It can later be removed easily before installing Kodlin shock end.
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Install the tool’s washer and nuts and tighten to compress shock spring again until locknut is exposed. Remove the cup used to center the spring. You are now ready to install the Kodlin shock end. Screw it all the way down after using thread locker on threads. Run the nut up and against the shock end and tighten snugly. Align the ends of shock so they line up.
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Carefully decompress shock tool keeping the Kodlin shock end centered in top plate. Make sure it is centered and does not catch an edge and bind on the tool.
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This picture shows the bushing being removed from stock shock end. Kodlin shock end installed and awaiting the bushing to be installed
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Lube the bearing inside and bushing just slides in.
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Shock is now ready to go back into the bike.
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From right to left this is what is removed from the shock. Shock end shown with bushing in it, but it gets removed and installed on Kodlin part.
Revision Date:2/17/2021
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