Ski-Doo REV Series Shop Manual

Section04ENGINE
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 cylinder.
ENGINE
TYPE
COMBUSTION CHAMBER VOLUME
(cc)
(up to top thread of spark
plug hole)
593 26.67 ± 1.29 - 1.18
593
HO/SDI
26.4 ±1.2
693 31.71 + 1.51 - 1.38
793 HO 36.34 + 1.73 - 1.58
– Install a thicker or thinner cylinder/crankcase
gasket (refer to Parts Catalogs)inordertoob-
tain the specified combustion chamber volume
or the nearest.
ENGINE
TYPE
CHANGE IN COMBUSTION CHAMBER
VOLUME (cc) for every 0.1 mm
(.004in)ofgasketthickness
593 HO
0.41
793 HO 0.53
USED PISTON MEASUREMENT
Note the measurement on the piston dome.
F00D0EA
2 1
1. Piston dome
2. Piston measurement
Using a micrometer, measure piston skirt at
15 mm (.590 in) perpendicularly (90°)topiston
pin.
F01D0NA
1
A
1. Measuring perpendicularly (90°) to piston pin axis
A. 15 mm (.590 in)
ENGINE
TYPE
MAXIMUM PISTON SKIRT WEAR
mm (in)
All 0.15 (.006)
The measured dimension must not be less than
0.15 mm (.006 in) of the one scribed on piston
dome. Otherwise, install a new piston.
CYLINDER/PISTON CLEARANCE
Used and New Pistons
IMPORTANT: Make sure used piston is not worn
more than specified. See USED PISTON MEA-
SUREMENT above.
Take the measurement on the piston dome.
F00D0EA
2 1
1. Piston dome
2. Piston measurement
mmr2004-Rev 117

Ski-Doo REV Series Specifications

General

Chassis	REV
Track Width	15 in
Fuel Capacity	10.6 gal
Seating Capacity	1
Reverse	Available on most models
Electric Start	Available on most models