1996 Ski-Doo Shop Manual, Volume 2, Page 91Get this manual
S b-S ection 02
Section 04 ENGINE (LE and GIN DIM SIO RE T)
LEAK TEST AND ENGINE DIMENSION MEASUREMENT 2
LEAK TEST
Th follo ing give verification proce dures for liquid coole engin es though it also applie to fan cooled engin esF or engin es, do not consider inform tio ertaining to oolant yst and crankcase rotary valve gear reservoircomponentsO in-cylind er ngine s, each cylinder can not be verified individually du to leakage fro one cylind er to the other through rotary valve (e xcept on engin es ith separate intake anifolds)B eside s, on ngine s, le ak ill occur through labyrinth sle ve in ce nter of crankshaft10Engine ust stand this pre ssure during minute sIf pre ssure drops fore inut s, ch ck st kit sprayin soap solutio on pu mp piston, all plugs and fittingsIf test er kit is leaking, bubbles ill indicate here le ak co from If tester kit is not leaking, che ck engin as per follo ing proce dure