2005 Honda CRF 250 R Logo
Posted on Feb 13, 2011
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2007 honda crf 250. Sat for 1 1/2 yrs. won't start by cranking, or pushing.

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Anonymous

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  • Posted on Feb 13, 2011
Anonymous
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Joined: Jan 27, 2011
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Try a small shot (about a 2 second spray) of starting fluid in the air intake then cranking....
WARNING- DO NOT TRY AND KEEP IT RUNNING BY USING THE STARTING FLUID! It can damage your engine.

If your bike fires and runs for a bit, the most likely problem is your gas has gone "sour". You need to drain all the old gas out and properly dispose of it.

Over time, gas will cause a varnish buildup in your carb if it sits too long. You can try adding some carb cleaner to fresh gas, but the results will not be immediate. You may have to have the carb rebuilt.

When you store anything gas powered, there is an additive called Sta-bil that will act as a gasoline preservative for about a year.

  • Anonymous Nov 27, 2011

    Try taking your carb out and giving it a good clean. take the bowl with the float and the pin out and take compressed air to the gas line thats inside the carb. if you feel air then most likely you are a ok. if that doesnt work take the cylinder head off and check the compression. may be a bad ring

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