Question about 2003 Yamaha V Star Classic

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Is not getting enough gas...back firing. Checked carbs they are good. Fuel pump good....what next?

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Check for vacuum leaks.

If it's not vacuum leaks, then the only other option is cleaning the carbs, if you know it's not getting enough fuel to run properly.

Posted on Aug 20, 2010

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1 Answer

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1. has it been sitting?
2.if yes dump out the old gas and what is premixed since it is possibly old, 2 months max.
3. new prem gas and oil mix.
4.press the comp release when starting , was this pressed when you checked compression?
5.if will not sart try a quick blast of WD-40 in carb or a little gas. WD is flammable and will let you know if fuel related. if it fires for a couple seconds then sparks ok and still has gas problem. try one more time and maybe stuck fuel pump flaps in carb will become unstuck. if it runs on WD or small amount of gas in carb but not otherwise, sparks OK. time to rebuild carb check filter and Gas Line.
As always when playing with gas or other Flammables have a Fire Extinguisher ready for the "Expected". Always expect a fire that way you are calm, VERY important if you have spectators.
Safety Guy Bill

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