'Hey guys. I have an '04 Screaming Eagle E Glide with 70 k miles on it. Just recently, the engine has started skipping. The rear cylinder is not firing all the time at idle. Did a compression test with these results: Both plugs out: the front cylinder hits 150 lbs consistently with WOT and with no throttle. The rear cylinder hits 70 lbs with a few revolutions and then all of a sudden, it hits 150 lbs.. I release the pressure guage and try it again and get the same readings. There seems to be no pattern when it hits 150 lbs., sometimes it will turn over a few more or less times before it hits 150 lbs. AND, to complicate things, when actually riding, anything over idle, it runs smooth as can be. No skip at all and plenty of power. All this with the engine cold or hot. The bike has around 70K miles on it and still runs strong, just don't idle too good. The engine has never been worked on or modified in any way except at 30 k miles, I had the dealer install a new screaming eagle cam chain tensioner with high flow oil pump and I just put in an Axtell oil bypass unit which did raise the oil pressure at all RPMs. The skipping was before the oil bypass unit was added too . I'm thinking that the exhaust valve may be sticking or maybe a bad hydraullc lifter, something along those lines. Anyone have any ideas or thoughts as to what might be causing it?Thanks

 

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