Ski-Doo Ski Doo MX Z 2005 [39/1429] Section 02 troubleshooting

Ski-Doo Ski Doo MX Z 2005 [39/1429] Section 02 troubleshooting
Section 02 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.
mmr2005-063 13

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