GAS GAS enducross EC 2008 Manuel D'entretien page 138

MALFUNCTION
4 The engine operates irregularly
5 Engine lacks power or poor
acceleration
6 Abnormal engine noise
7 Detonations from the exhaust
pipe
8 White smoke coming out of the
exhaust pipe
9 Brown smoke coming out of the
exhaust pipe
POSSIBLE CAUSE
- Ignition rotor damaged.
- Water in fuel.
- Fuel supply defective.
- Dirty air cleaner.
- Leaking or deteriorated exhaust system.
- Dirty carburetor jets.
- Worn or damaged crankshaft bearings.
- Clutch slips.
- Ignition problem.
- Overheating.
- Carbon build up in combustion chamber.
- Incorrect octane or poor quality gasoline.
- Damaged spark plug or incorrect
specifications.
- Deteriorated exhaust system gaskets.
- Deteriorated cylinder head gasket (water
leakage into the cylinder).
- Incorrect throttle valve cable adjustment.
- Restricted air cleaner.
- Main jet set too high.
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REMEDY
- Replace the rotor.
- Drain the fuel tank and fill up with new fuel.
- Clean the fuel system and verify its operation.
- Clean or replace the air cleaner. Verify its operation.
- Verify if the exhaust system is damaged. Replace the
muffler fiberglass packing, if necessary.
- Disassembly the carburetor and clean all jets.
- Replace the crankshaft bearings.
- Verify the clutch operation. Go to a specialized workshop.
- Go to a specialized workshop.
- Refer to section 5.
- Clean the combustion chamber.
- Drain all gasoline and fill up with a higher octane fuel.
- Replace the spark plug with a new one of the correct type.
- Verify if the exhaust system is damaged. All gaskets must
be in perfect conditions, otherwise replace them with new
ones if necessary.
- Replace the cylinder head gasket. Go to a
specialized workshop.
- Readjust the throttle valve cable.
- Clean or replace the air cleaner. Go to a specialized
workshop.
- Verify main jet operation. Go to a specialized workshop.