Question about 1986 Yamaha RD 350

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Running fine idle ruff at hi rpm

Idleing it finewhen u build rpms it starts cutting out its been bored 40 over white bros pipe and k&n filter please help i just put a brand new cdi box cause i thought it might be a wire prom but i guess not

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  • hopalongbill May 27, 2009

    yess went from 145 to a 150



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Did you re-jet the carbs?

Posted on May 27, 2009

  • tbrat44 May 27, 2009

    did the bike just start running like this, or is this how it started acting after the 40 over bore and new performance pipe and air filter and jetting?



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