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mummyarms
oh that reminds me. we had to pull what i think is the timing chain tensor out briefly. could that have ****ed up the timing and if it possibly did is that also a candidate for a problem with the 4th cylinder?
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mike_of_bbg
It probably didn't hurt anything. Thought if your valve cover gasket is still fresh (which it should be) there's no harm in pulling off the valve cover and verifying the timing. If the chain slipped that should affect all of the cylinders equally - so that's probably not your issue with #4.
Did you bench sync your carbs before putting them on. #4 could just be very closed in comparison to the others. Are you only noticing this at idle? If you rev up the bike does #4 warm up?
Have you checked the coil secondary impedance? Bad spark plug caps? Probably that it's not getting fuel or air though. You took the jets out of the 850 carbs and put them in the 1100 carbs?
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mummyarms
Its a brand new gasket. I havent done a bench sync on them but know that I know about bench syncing I will do it. It stays cold both during throttling and idle. The spark plug caps are all brand new. the spark definitely isnt the trouble. I didnt switch the jets. I simply transfered the whole carburetor system from the 1100 to the 850
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