GAS GAS EC250-F SUOMI User Manual page 61

FAULT
8
High oil consumption
9 Abnormal engine noise
10 Detonations in the exhaust
11
White fumes from the exhaust
12
Brown fumes from the exhaust
13
The gears do not engage
- There is too much engine oil.
CAUSE
- The quality or viscosity of the oil
is insufficient.
- Ignition problems.
- Valve adjustment play.
- Over heating.
- Carbon in combustion chamber.
-The carburator need to be adjusted
- Incorrect or poor gasoline or wrong
octane rating.
- Incorrect or non-specified spark
plug.
- Exhaust system joints
deteriorated.
- Cylinder head gasket leak
(water leaking into cylinder).
- Air filter obstruction.
- Clutch does not release.
- Shift fork worn or locked.
- Gear locked in transmission.
- Shift lever damaged.
- Selector position spring broken
or loose.
61
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SOLUTION
– Correct the engine oil level. Drain oil as necessary from
the engine.
- Empty the engine oil and fill with oil of the recommended
viscosity.
- Go to a specialist workshop.
- Adjust the valve play. Go to a specialist workshop.
- See chapter 5.
- Clean the combustion chamber.
- Go to a specialist workshop.
- Drain the petrol and fill with fresh or higher octane petrol.
- Change spark plug for a new one or recommended one.
- Check if the exhaust system is deteriorated. The seals
must be in perfect condition, if not then they must be changed
for new ones.
- Change the cylinder head gasket. Go to a specialist
workshop.
- Clean or change the air filter. Go to a specialist workshop.
- Go to a specialist workshop.
- Change the gear fork.
- Go to a specialist workshop.
- Change the gear lever.
- Adjust the selector position spring or change it.