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xr650l bum

losing fuel mixture screw!

7 posts in this topic

xr650l. I have lost one mixture screw already. I dont want to lose another. It seems that when the tab is cut off it now enables the screw to rotate freely and then completely out!!! I am trying teflon tape to make it tighter, even stretching out the spring to give it more force. What to do, and where to get another just in case?

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i noticed the mixture screw on mine rotating out also, i put a zip tie around the head of it so that the tab of the tie hits the carb body keeping it from coming all the way out.

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If its loose, make sure that the spring, metal washer, and o-ring are all in there, and in the right order.

Dave

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I had a similar problem with my KTM and the only solution is to replace the spring. Over time, the spring looses it's tension and eventually allows the screw to vibrate out. I tried stretching the original spring and it lasted a little longer, but eventually the screw fell out. After I replaced the spring, no more problems.

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