Question about 2008 BMW G 650 Xchallenge

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Xchallenge won't start when engine is hot.

Always starts first time when the engine is cold. When the engine is hot (e.g. filling up with petrol or a short stop) it splutters & backfires and has trouble starting. If you are lucky it will eventually fire up after 6 -10 attempts. Any more and the battery is too flat to turn the engine over (I’ve had several long pushes home). The bike is 6 months old and has 2600 miles on the clock. It has always exhibited this characteristic but it is getting worse.

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  • Colda Feb 27, 2009

    Thanks - I'll try that!



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Check tightness of bolt where (carb/FI) goes into intake, and where intake goes into engine. Check gaskets in those locations, if any. Sounds like heat is causing some material to distort, causing a vacuum leak.

Posted on Feb 27, 2009


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