Dead evo!
Stellar HDF Member
Joined: May 2009
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From: Middle of Kansas
Does it have adjustable pushrods in it? If not, and you have one thats loose, it could be a lifter or the cam. Or it could be a stuck valve. My old Sportster use to quit because the valves were to tight. But when it cooled off, it would start right back up and run just fine for a while. I richened up the carb a bit, and that helped a lot. The backfiring could be an ignition problem. If you did not have it warmed up with the throttle wide open when you checked compression, I would expect it to be down about where yours was. If it will not start, the first thing I would check would be to make sure it has spark. Just thinking out loud here.
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Joined: Dec 2010
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Yeah, I've got fuel and fire. Im just not sure how to check the timing. But wit5h the pushrod business Im gonna tear into it as soon as I can find a manual. Just as well while I'm there get me one a them cams and some adj. pushrods and all new lifters and bearings.
Stellar HDF Member
Joined: May 2009
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From: Middle of Kansas
I could be mistaken, but I think the 91 EVO had the good Torrington cam bearing. If so it should be good. Lifters on the other hand, were not so good that year. I think the later "B" lifters are pretty good. I have them in my 99, and so far so good at 28,000 miles.
Ultimate HDF Member
Joined: Aug 2008
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From: eastern oklahoma
hey beemervet, i thought the same thing, that i was required to have harley remove and replace the motor, but i can remove it from my bike, haul it to the harley shop and they ship it off to harley for their reman program. they told me that i can bring the whole bike in and quoted me 8+ hours for the remove and replace. that's when i asked them if i can just take the motor to them and they said, sure, no problem.
Stellar HDF Member
Joined: Apr 2009
Posts: 3,039
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From: Northern Ontario
Im thinking the cam is way out of time or something along that line.
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Joined: Dec 2010
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checked it out cam looks good, timing is spot on, Gonna take the heads off tomorrow. If the bottom end is good I'll be allright but with the price of parts I cant go all the way through it. Wish me luck!