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Просмотр инструкции снегоходы Ski Doo SUMMIT 2005, страница 36
Section 02 TROUBLESHOOTING
Subsection 01 (ENGINE)
SYMPTOM ENGINE SUDDENLY TURNS OFF.
CONDITION NORMAL USE.
1. Perform engine leak test. Refer to LEAK TEST. Check possible piston seizure.
a. Damaged gasket and/or seal.
Replace defective parts.
2. “Four-corner” seizure of piston(s).
a. High acceleration when engine is cold. Piston expands faster than cylinder.
Replace piston(s). Ask driver to refer to the WARM-UP PROCEDURE in the Operator’s Guide.
TEST/INSPECTION
3. Piston(s) seizure on exhaust side (color on piston dome is correct).
a. Kinked fuel tank vent tube.
Relocate fuel tank vent tube.
b. Leaks at fuel line connections or damaged fuel lines.
Replace defective lines.
c. Fuel does not flow through carburetor(s) (foreign particles in needle area and/or varnish formation in
carburetor(s)).
Clean carburetor(s) and install new filter(s).
d. Spark plug heat range is too warm.
Install spark plugs with appropriate heat range (refer to TECHNICAL DATA).
e. Improper ignition timing.
Adjust according to specifications (refer to TECHNICAL DATA).
f. Restriction in exhaust system.
Replace.
g. Compression ratio is too high.
Install genuine parts.
h. Too low fuel octane number.
Use proper fuel octane number.
i. Carburetor calibration is too lean.
Adjust according to specifications (refer to TECHNICAL DATA).
j. Improper reed valve adjustment or damage.
Adjust according to specifications (refer to appropriate ENGINE subsection) and/or install BRP’s
recommended reed valve.
k. Poor quality oil.
Use XP-S injection oil.
l. Leaks at air intake silencer.
Replace air intake silencer grommets.
m. Excessivewearofpistonrings.
Replace piston rings.
10 mmr2005-063
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