GAS GAS EC 125 - 2003 Service Manual page 53

TROUBLE
5 Engine flooded
6 Engine does not rev high, will
not reach full power
7 Abnormal engine noise
8 Spark knock
9 Exhaust pipe get out white
smoke.
10 Exhaust pipe get out brown
smoke.
11 Clutch not disengaging properly
CAUSE
- Wiring shorted or open.
- Water in fuel.
- Fuel supply partically interrupted or
carburettor dirty.
- Dirty air filter.
- Hose of engine ventilation is bent.
- Main jet clogged.
- Crankshaft bearing worn or damaged.
- Clutch slipping.
- Starter problem.
- Overheating.
- Carbon in combustion chamber.
- Incorrect or poor gasoline.
- Incorrect spark plug.
- Connecting rod exhaust system damage.
- Cylinder head gasket leaking.
- Gas valve passage maladjusted.
- Air filter is bloked.
- Main jet higher.
- No clutch lever play maladjusted.
- Friction plate worn or warped.
- Steel plate worn or warped.
- Gear lever damaged.
- Clutch spring broken or weak.
- Clutch release mechanism trouble.
EC FSE 2003 -
- Change wiring.
- Empty fuel tank and fill up with new one.
- Clean and check fuel system as well as carburettor.
- Clean and change the air filter.
- Replace non-buckling ventilation hose.
- Dismount carburetor and clean main jet.
- Change crankshaft bearing.
- Check clutch. Go to specialized garage.
- Go to specialized garage.
- Look number 5.
- Clean combustion chamber.
- Empty, and fill up with good gasoline.
- Cambiar bujía por otra nueva o adecuada.
- Check if the exhaust system is damaged. Connecting rods
have to be perfect, if they aren't, change them.
- Change cylinder head gasket leaking. Go to specialized
garage.
- Adjust gas valve passage. Go to specialized garage.
- Clean or change the air filter. Go to specialized garage.
- Check main jet. Go to specialized garage.
- Go to specialized garage.
- Change friction plate.
- Go to specialized garage.
- Change gear lever.
- Check or change clutch spring.
- Check clutch release mechanism.
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REMEDY