Question about 2005 Yamaha V Star Silverado

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2005 VSTAR 1100 Silverado Backfire

On throttle, I can hear some backfire from exhaust. Also high idle when coming to stop, it goes away, but is a concern. What should I look for or have done.

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Are you running on original pipes or have you installed aftermarket pipes that are louder ?? I had the same problem with aftermarket pipes and come to find out my carbs were not jetted the way they were supposed to have been done when I installed the pipes.Also there are two chrome tubes starting at the front of the engine going under the seat towards the rear--- there is a rubber hose connection connecting each side .You should disconnect these hoses and bypass the tubes-- in other words use one hose to connect the front two tubes together and the other to connect the rear tubes together , its some sort of early emmission thing that will cause some backfire

Posted on Apr 23, 2009

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Check for vacuum leaks around the carb intakes it sounds like you may just have a crcked vacuum line

Posted on Jan 13, 2009

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It sounds to me that your carbs might be a little gunked up - you mentioned the gas may have been old, so it's possible that the smaller (idle) jets are slightly plugged up. Fresh fuel might do the trick and/or you could try using a fuel system cleaner and water remover. This problem might 'solve itself' with a little time.

As far as the backfire - this might be either from the carb issue or it could be related to that rattle you mentioned - you could have a loose connection at or near the head - this can **** air and cause a backfire.

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Is the running fast question answered? Give me more information on the problem if it isn't.

Please rate this answer. Thanks njv6!

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Please rate this answer. Thanks!

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