2004 Ski-Doo REV Series Factory Service Manual, Page 143Get this manual

2004 Ski-Doo REV Series Factory Service Manual, Page 143

Section 04 ENGINE Subsection 02 (ENGINE LEAK TEST AND DIMENSION MEASUREMENT)
NOTE: When the combustion chamber is filled to top of spark plug hole, it includes an amount of 2.25 cc corresponding to the spark plug well Repeat the procedure for the other cylinderENGINE TYPE 593 593 HOSDI 693 793 HO COMBUSTION CHAMBER VOLUME (cc) (up to top thread of spark plug hole) 26.67 1.291.18 26.4 1.2 31.711.511.38 36.341.731.58
F01D0NA

Install thicker or thinner cylindercrankcase gasket (refer to Parts Catalogs) in order to obtain the specified combustion chamber volume or the nearestENGINE TYPE 593 HO 793 HO CHANGE IN COMBUSTION CHAMBER VOLUME (cc) for every 0.1 mm (.004 in) of gasket thickness 0.41 0.53

1Measuring perpendicularly (90) to piston pin axis A15 mm (.590 in)