1972 Ski-Doo Shop Manual, Page 183Get this manual
2-9-01 TROUBLE SHOOTING
lRREGUUnl IE5
Rewind starter inoperative
1Pawls bent, broken or worn 2Friction spring broken or stretched 3Starting pulley worn 1Recoil spring detached from pin or broken 2Pulley shaft bent 1234Piston seized or rusted to cylinder wall Crankshaft bearing seized Broken connecting rod Engine improperly assembled after repair