Troubleshooting:
Engine will not Start:
1. Check the condition of the spark plug if not changed in long time the plug will be full of
carbon and may need to be cleaned / replaced.
2. Check the pop-off pressure of the carburettor. It should be sealing at a minimum of 0.45bar
if less than this it is necessary to fit a new needle and seat kit (pn233-721P).
3. Check there is no restriction in the fuel line passing through the tank to the engine.
4. Check the pulse and fuel line connections are ok. If the fuel line is not a tight fit air will pass
and weaken the signal.
5. Check the carburettor jets are open and set to the correct adjustment.
Engine Performance is Down:
1. Check the pop-off pressure of the carburettor. It should be sealing at a minimum of 0.5bar if
less than this it is necessary to fit a new needle and seat kit (pn233-721P).
2. Replace the oil for fresh oil.
3. Check the measurement on the inlet and exhaust valve clearance (0.15mm clearance
recommended).
4. Check that the carburettor settings are correct and not been adjusted far from the
recommended settings.
5. Ensure the chain alignment is correct so the chain is not dragging and causing loss of power.
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