This compression tool from SLP allows you to compress the spring without removing the clutch from the engine. Simply remove the drive clutch bolt, thread this tool into the crankshaft and compress the spring using threaded adjuster. This allows you to safely remove the clutch cover cap bolts without damaging the bushing to change the drive clutch spring or weights. Designed specifically for the P-22 and P90-X clutches, but will also work with most models using a P-85 style drive clutch utilizing a 14mm clutch bolt. Mfg Part #20-329
