Question about 2003 kawasaki KLR 250

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My kl250 will not start even after valve adjustment

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Hi, are you saying since you addjusted the valve clearences the bike wont start? re check make sure you had the engine on the correct stroke, remove spark plug, check piston is at tdc, and the cam lobes are facing down, recheck your clearences here, hope this helps/paul

Posted on Dec 30, 2010

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I just repair a B&S 310000 series that had so much compression that the engine would even complete a cycle. After checking the valve adjustment I found that the decompressor on the cam had failed.

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Valves are adjusted by changing the the shims to thicker or thiner ones.
measure all the clearances and write them down, remove the cams and remove the cam buckets of the ones that need adjustment. Note the sizes of the shims removed( it is etched onto them) and replace with different thickness shims to bring them back into tollerence.

Make some marks and notes on the cam timing before removing cams,even take a photo(or that will be your next question) .
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Motorcycle kl250 stockman will not start

If you've tried using a shot of aerostart, and it won't fire there are only two MAIN reasons for spark at the right time, or your valves are not sealing at the right time.

I hope this helps you, as with all problems, I wish I was there to experience what's happening.

Good luck, and thanks for letting us at help

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