Quote:
Originally Posted by
Spireite1
I have taken the tank off tonight ready to look at the fuel system and I will also replace the HT lead, plug and cap.
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While you've got the tank off check the valve clearances.
Quote:
Originally Posted by
Spireite1
there are no strange noises in the engine when it is running ok, but it sounds really rough (like the timing is out) and pops like mad when the problem starts.
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Also check the auto decompression mechanism is functioning as it should; if its not and you've got an exhaust valve not seating properly it won't rev.