Question about 2000 Yamaha V Star 1100 Classic

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2000 Yamaha V star Classic 1100; Once it warms up, tends to backfire a bit and overrevs in low gear (very high idle). What should be the cause of the high idle.

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Anonymous

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The idle is set too high. Check on the left side of the engine, about mid point of the jugs "V", you should see a knob near the middle. Turn it R/L until the idle lowers. (slowly!) (only AFTER it has warmed up.

Posted on Oct 29, 2010

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4 Answers

Backfire


is it a straight thru exhaust, or is it just a head pipe with nothing attached? If it's just a head pipe, you need to get some sort of muffler on it or you'll burn your valves out from a lean condition. The backfire is due to the vaccum fed carbs that yamaha runs. They work wonderfully, but under heavy deceleration, the vaccum still feeds the bowl, and it builds up excess fuel, which eventually burns off as a backfire. If it were fuel injected, you could have the fuel map adjusted to lean it out under deceleration.

Jun 22, 2010 | 2001 Yamaha V Star 1100 Classic

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