Motorcycle's primary chain case cover
Motorcycles use wet clutches that are bathed in primary chain case oil. The clutch pack consists of a series of friction and steel plates that are engaged to one another by pressure from the powerful clutch spring. The friction plates are splined to the clutch basket and the steel plates are splined to the transmission shaft. The friction plates will wear down with use and must be replaced to maintain proper clutch pack thickness and prevent clutch slippage under power. Clutch pack kits are available from the manufacturer and include the friction plates only.
Instructions
1. Remove the primary chain case drain plug with an Allen wrench. Position the catch pan to collect the draining fluid. Inspect the drain plug magnet for excessive metal salt that may indicate a severe problem in the primary case.
2. Remove the shifter lever and the left foot peg with Allen wrenches. Remove all of the primary chain case bolts with an Allen wrench. Pull the primary cover off of the engine.
3. Put on the safety glasses. Remove the clutch spring retaining snap-ring with a pair of inside snap-ring pliers.
4. Pull the clutch spring and the clutch end cover off of the clutch pack. Slide the clutch pack out of the clutch bracket. Note the order of the clutch plates to aid in reassembly.
