Ski-Doo REV Series Shop Manual

Section 03 TROUBLESHOOTING
Subsection 01 (ENGINE)
SYMPTOM ENGINE DETONATION AT MAXIMUM RPM.
CONDITION NORMAL USE.
1. Check which type of fuel is used.
a. Octane number is too low and/or alcohol level is too high.
Use recommended fuel type.
2. Check spark plug type.
a. Improper spark plug heat range.
Install recommended spark plugs (refer to TECHNICAL DATA).
3. Check exhaust system.
a. Too much restriction.
Replace.
4. Check ignition timing.
a. Timing is too advanced.
Adjust according to specifications (refer to TECHNICAL DATA).
5. Check if engine is overheating. (Refer to HIGH ENGINE OPERATING TEMPERATURE).
6. Check carburetion.
a. Fouled and/or improper carburetor components.
Clean or replace according to specifications (refer to TECHNICAL DATA).
TEST/INSPECTION
7. Check compression ratio and combustion chamber volume.
a. Compression ratio is too high.
Install genuine parts.
mmr2004-Rev 41

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