Jotagas JTG 125cc 2017 Handbuch Seite 84

Engine makes strange noises
Engine lacks power
Exhaust gives off white smoke
Exhaust gives off brown smoke
Explosions in the exhaust
Clutch not working correctly
- Ignition problems.
- Overheated engine.
- Admission problems.
- Exhaust system problems.
- Carburettor jets dirty.
- Damaged crankshaft bearings.
- Clutch slipping.
- Water in the cylinder.
- Accelerator cable incorrectly adjusted.
- Lack of air in the mixture.
- Main jet too high.
- Carbon deposits in the combustion
chamber.
- Incorrect type of fuel.
- Spark plug in bad condition or wrong
type.
- Exhaust system gaskets damaged.
- No play in the clutch lever.
- Take motorcycle to an authorised
workshop.
- Stop the engine and check the state of
the cooling and exhaust systems.
- Clean the fuel admission system and
air filter.
- Check for leaks in the system and
clean or replace the silencer fibre.
- Remove the carburettor and clean
them.
- Replace the bearings.
- Check its adjustments. Take bike to a
specialised workshop.
- Change the cylinder head O-ring.
- Check accelerator adjustment.
- Clean or change the air filter.
- Check the main jet.
- Clean the combustion chamber.
- Empty fuel tank and refill with correct
type of fuel.
- Replace spark plug with correct type.
- Check state of gaskets and replace if
necessary .
- Take bike to a specialised workshop.
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