Wilwood GP310 Motorcycle Rear Spocket Brake Kit - Manual (Page 3)

GENERAL INFORMATION:
Installation of this kit should ONLY be performed by a trained mechanic experienced in the installation and proper operation of
motorcycle disc brake systems. Read these instructions carefully before beginning work to be sure that the procedures are thoroughly
understood. Before assembling the Wilwood GP 300 rear caliper disc brake kit, double check the following items to ensure a trouble-
free installation.
•Make sure this is the correct kit to match the exact year and model Harley-Davidson® for which installation is intended.
•Inspect the package contents against the parts list to ensure that all components and hardware are included.
•There are no unique or special tools required. All tools and appropriate sizes will be mentioned throughout the instructions as
applicable, and are standard mechanic’s tools.
ASSEMBLY INSTRUCTIONS: (numbers in parenthesis refer to the parts list/diagram on the preceding page).
Safety Precautions:
Position the motorcycle on a flat surface, block the front wheel. Utilizing a suitable lift or stand, raise the rear wheel off the ground
and secure the motorcycle so that it will not fall over.
Disassemble the original equipment:
Depending upon the configuration of your motorcycle, removal of the rear muffler or exhaust pipe may be necessary to facilitate the
removal of the rear axle or rear brake caliper.
Remove the banjo fitting bolt (fluid fitting) and washers from the Original Equipment Manufacturer (OEM) caliper using a 3/8 inch
box end wrench (12 point), note their positions before removal. Save the banjo fitting bolt. Brake fluid will drain from the brake line,
have a suitable container handy to catch this fluid (a clear glass jar works well).
Using a 5/16 inch Allen wrench, loosen and remove the caliper mounting bolts from the stock mounting bracket, remove caliper.
Remove cotter pin and loosen axle adjusters and axle nut, then slide the axle out of the rear wheel. Remove the left wheel spacer
and slowly lower the rear wheel while slipping the belt off the pulley simultaneously. Slide the rear wheel assembly away from the
motorcycle. Remove the OEM caliper bracket. On some models, it may not be necessary to completely remove the rear wheel.
CAUTION:
It is critical that all components, tires, pads and rotors are thoroughly cleaned of any excess brake fluid (brake fluid acts as a
lubricant if not removed). Use a suitable brake cleaner available from your motorcycle retailer. Be careful to protect painted
surfaces from both the brake fluid and cleaner.
Verify the wheel turns freely and stops when the brake lever is applied. Remove the motorcycle from the stand. Road test in a
suitable area at low speeds until you have ensured that the installation was performed properly. The mechanic should give the end
user an overview of the new system to help familiarize the consumer with its operational capabilities and maintenance.
NOTE:
Dispose of unwanted brake fluid in an environmentally safe manner.
PROBLEMS:
If problems arise with the installation, the mechanic should consult the dealer where the kit was purchased for further assistance.
General Information and Assembly Instructions
Page 3