Question about 2008 BMW G 650 Xchallenge

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Xchallenge won't start when ehgine is hot.

Starts first time when engine is cold. Splutters and backfires repeatedly when the engine is hot (e.g filling up with petrol or short stop). If you are lucky it may eventually fire up after about 6 to 10 tries but any more and the battery is too low to turn the engine over = long push home.

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  • RescueTechLA
    RescueTechLA May 11, 2010

    I've got a service manual for an F650. Would that do you any good?

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ButtFuzz
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SOURCE: Xchallenge won't start when engine is hot.

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

6ya6ya
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Posted on Jan 02, 2017

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Runs good cold,runs bad when it warms up


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There is a proper way to start an engine. Most bikes have four controls to assist in starting.
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1 Answer

Xchallenge won't start when engine is hot.


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.

Feb 27, 2009 | 2008 BMW G 650 Xchallenge

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