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58
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FAULT
CAUSE
SOLUTION
Engine rotates but does not start
The engine starts but does not
stop
The engine overheats
The engine does not run
smoothly
The engine lacks power or does
not accelerate correctly
Engine consumes too much oil
- The CDI pin connector, generator or coil
oxidised or in poor condition.
- Petrol /air mixture incorrect.
- Air supply incorrect.
- Fuel insufficient.
- Insufficient coolant in the circuit.
- The radiator is soiled or partially
obstructed.
- Carburation system maladjusted.
- Valve adjustment incorrect.
- Fuel supply faulty.
- Air filter obstruction.
- Exhaust deteriorated with leaks.
- Valve set too small.
- Decompression maladjusted.
- Piston-cylinder ring diameter tolerance
excessive.
- Clean the petrol tank ventilation.
- Close the starter. Clean the petrol tank ventilation.
- Fill the fuel tank with fuel.
- Add coolant, check the seal of the cooling system.
- Clean the radiator fins or change.
- Adjust the carburation system. Visit a specialist workshop.
- Adjust the valve play. Visit a specialist workshop.
- Clean and check fuel system.
- Clean or change the air filter.
- Check if the exhaust system is deteriorated, renew the
glass fibre in the silencer if necessary.
- Adjust the valve play. Visit a specialist workshop.
- Verify the operation of the system.
- Adjust the tolerance by changing the piston rings.
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