1974 Ski-Doo Shop Manual, Page 50Get this manual
REMOVAL Remove muffler, rewind starter guide and disc brake assembly Remove chaincase cover and drive axle oil seal, (chaincase side) Relea se track tensionRel ease chain tensionRemov upper and lower sprocketsRemove bolt securing chaincase to frameRemove chain case
Adjust chain tension (Correct chain tension is 1 4" at left side of chain in chaincaseTo correct, unlock tensioner boltthen turn bolt clockwise or counter -clockwise)
INSPECTION
Visually inspect chain for cracked, damaged or missing link rollersInspect for defective bearingI nspect sprockets for damage or wear
DISASSEMBLYASSEMBLY
edgeData
seal must be pushed in until flush with chaincase hub proper sprocket and chain use, see Technical