Adjusting rear wheel bearings on a Harley Davidson motorcycle typically involves the following steps:
Lift the motorcycle: Use a motorcycle lift or a suitable stand to elevate the rear wheel off the ground. Ensure that the bike is secure and stable before proceeding.
Remove the axle nut and spacer: Locate the axle nut on the left side of the rear wheel and use the appropriate socket or wrench to loosen and remove it. Slide out the axle spacer from the right side of the wheel.
Loosen the rear axle adjusters: On either side of the swingarm, you'll find axle adjuster bolts or nuts. Loosen these to create some play in the axle.
Check the wheel for play: Grasp the rear wheel at the 3 o'clock and 9 o'clock positions and attempt to move it sideways. If there is excessive play or looseness, the bearings need adjustment.
Adjust the bearings: Begin by tightening the axle adjuster on one side while simultaneously loosening the adjuster on the other side. This will help align the wheel and remove any play. Make small adjustments on both sides until you achieve the desired result. Take care not to overtighten, as it can lead to bearing damage or excessive drag.
Verify wheel alignment: With the bearings adjusted, check the alignment of the rear wheel. Measure the distance from the center of the axle to fixed points on the frame or swingarm on both sides to ensure the wheel is properly aligned.
Re-tighten the axle nut and adjusters: Once the bearings and alignment are adjusted correctly, tighten the axle nut to the manufacturer's specified torque. Double-check the axle adjuster bolts or nuts and tighten them equally on both sides.
Test the wheel: Lower the motorcycle from the stand or lift and sit on it to compress the suspension. Bounce the rear end up and down a few times to settle the suspension. Then, check the wheel again for any play or looseness. If everything feels secure, you've successfully adjusted the rear wheel bearings.
It's important to consult the owner's manual or a reliable Harley Davidson service guide for specific instructions and torque specifications for your particular model. Additionally, if you're uncertain about any step or lack experience working on motorcycles, it's recommended to seek assistance from a professional motorcycle mechanic.