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Backfire and late firing

Posted: Wed Nov 25, 2009 3:05 pm
by Miles
Hello, now I have finished rebuilding this bike I have the next problem.

When I start the bike each cylinder kicks in in-turn. Also it always starts with a back-fire.

I replaced the plugs and checked both coils to the test in the service manual. Have also checked the HT leads. I borrowed another IC iginter off Cargo and the problems still happen.

They are not as bad when the bike is warm though.

Tuning problem?

Re: Backfire and late firing

Posted: Wed Nov 25, 2009 3:55 pm
by zimm
cam timing perhaps... ?