Ski-Doo Ski Doo MX Z 2005 [988/1429] Section 03 engines 2 stroke

Section 03 ENGINES (2-STROKE)

Subsection 04 (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)

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1. Combustion chamber

NOTE: When checking the combustion chamber

volume, engine must be cold, piston must be free

of carbon deposit and cylinder head must be lev-

eled.

– Remove both spark plugs and bring one piston

to Top Dead Center a using a TDC gauge.

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1. Bring piston to TDC

– Obtain a graduated burette (capacity 0-50 cc)

and fill with an equal part (50/50) of gasoline and

injection oil.

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1. Graduated burette (0-50 cc)

– Open burette valve to fill its tip. Add liquid in

burette until level reaches 0 cc.

– Inject the burette content through the spark

plug hole until liquid touches the top of the

spark plug hole.

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1. Top of spark plug hole

NOTE: The liquid level in cylinder must not drop

for a few seconds after filling. If so, there is a

leak between piston and cylinder. The recorded

volume would be false.

– Let burette stand upward for about 10 minutes,

until liquid level is stabilized.

– Read the burette scale to obtain the quantity of

liquid injected in the combustion chamber.

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