Question about Yamaha Genuine Yfm 350 Yfm 600 Yfm660 Raptor Warrior Air Filter Old Stock

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1987 Yamaha Moto4 350 popping and backfiring while running. Has to power to attempt to put in gear, much less drive. Replaced the carb with a new one and it still has this issue. I read somewhere that the parking brake handle could be an issue. The parking handle did just break that morning. Any suggestions on what may be the problem?

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Could be a adjustment in the timing or carb , clean the plugs on it and crank it over with them out could be dirty plugs ,

Posted on Mar 31, 2014

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