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Idle Set Screw Not Holding


xslice

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Stock carbs on 2002. When purchased(used) the left side idle adjust would not thread in all the way. Re-tapped carb body and now idle screw won't hold position. Should I try to re-tap or can a heli-coil be inserted? If so what size heli-coil? Any other ideas/suggestions would be appreciated.

 

BTW - If anyone has a set of factory carbs-26mm that they would like to part with please message me.

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Use a little Teflon tape. Or use a nut under the screw like in my signature link of the tors idle screw install thread.

Check it out if you want.

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Some one made the hole slightly too large when drilling/tapping for idle screws not saying reg old white teflon tape wont work but supposedly gasoline dissolves it id use the yellow that is for natural gas, hydraulics and other petrol-based applications..

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Just resolved prob. The nut on the original screw was stripped at the head of the screw and wouldn't adjust as it kept trying to crossthread. When I removed the TORS and hit them with a sledge, I installed a new idle adjust screw/nut combo. Also, re-tapped the hole as the original was excessively tight. Well, the new screw wouldn't hold position as it kept popping out of the internal threads. The old screw fit nice and snug. Hacked sawed off the nut on the old and installed the nut that came with the new and all is well. I also noticed when I tried to put the new nut on the old screw it was very difficult. Could it be that I got a screw with out of spec threads? Or that the screw that came with the bike was an oddball? Both looked the same to the naked eye but obviously they aren't. Thanks for all the suggestions. 

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