Honda Ace/Spirit 750 Lowering Kit

Download This instruction booklet contains detailed steps for installing the rear suspension lowering kit on your Honda 750 ACE and Honda 750 Spirit motorcycle. Please pay careful attention to the instructions regarding the disassembly and re-assembly of your motorcycle. The installation of the Scootworks Ace/Spirit Lowering Kit follows the same procedure as replacing the rear shocks.

Installation :
1. Begin by lifting the rear of the motorcycle slightly off the ground. We use the Kodirak lifts, however the use of a floor jack and jack stands is an acceptable method. Insure that the motorcycle is stable before proceeding.
2. Next, identify the LH and RH lowering components in the photo below. The LH lowering assembly has a small angular tab at one end, while the RH lowering component has a large rectangular tab.
3. Using a 12mm wrench or socket, remove the hex head bolt from the lower end of the RH shock (exhaust side of the motorcycle). Pull the bottom of the shock off of the lower mount.
4. Slip the ScootWorks RH lowering assembly (the part with large rectangular tab, as seen in the first photo) onto the lower mount where the shock was originally attached (see photo below). Apply a small amount of Loctite to the threads on the original hex head bolt and washer (originally used to secure the shock), and reinstall it in the lowering assembly front mounting hole to secure the lowering assembly to the motorcycle. The lowering assembly should move up and down (though it may require a small amount of force in some installations). Reattach the lower eyelet of the shock to the round rod that protrudes from the side of the lowering assembly. It will be necessary to pivot the lowering assembly upwards to mate with the shock attachment. You’ll notice that the new shock mounting rod does not protrude through the shock eye, when installed…this is intentional. Locate the flat washers and hex head bolts supplied with the kit. Install one flat washer on one of the hex head bolts, apply a small amount of medium strength thread locking compound (loctite is acceptable), and screw this washer/bolt assembly through the shock eye and into the mounting rod on the lowering assembly. Tighten firmly with 13mm wrench.
5. Repeat the process for the LH side of the bike, using the lowering assembly with the small angular tab, as seen in the first photo.
6. Lower the bike back to the ground. Once off of the lift, the lowering components should fold downward, resting against the swingarm. Two different variations of rear swingarm castings have been found in the field. In swingarm version 1, the body of the LH lowering kit will rest on the swingarm casting (the angular tab will not contact the casting). In swingarm version 2, the small angular tab will rest on the swingarm casting.
7. Observation of the lowering kit’s performance on the road can also aid in setting the correct shock preload. While traveling over moderate road noise (not potholes and such, but rather “washboard” and other typical road bumps), observe the lowering kit. Its rear portion should move up and down very little if any. Excessive movement will indicate that the shock preload (firmness setting) needs to be increased.