Engine Rebuild Advice
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Cruiser
Joined: Aug 2012
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From: CT
Engine Rebuild Advice
So I have a 1992 Evo motor I am slowly rebuilding. Thus far I have had the cylinders bored .030 over and bought KB pistons with Hastings rings, the heads valves and seats were polished and installed new seals, the bike came with Screamin Eagle intake and exhaust that I will use for now, however, I installed a Boyesen twin shot on the carb and added easy adjust screws on the idle and the fuel mixture side, the bottom end will have an Andrews Ev27 cam with a new cam bushing and seal kit as well, a steel breather valve, a Torrington bearing, Crane adj. pushrods and tappet roller wheels, and all new Cometic gaskets. I also rebuilt the clutch and replaced the compensator sprocket spring, as well as every gasket and o-ring in the inner primary, as well as the inner primary to engine o-ring. From what most are saying I should have myself a pretty nice little scooter when its done, I'm just curious if anyone has any advice, input, or if I could/should install something else to get a little more out of her. I'm on a nickel and dime budget, that's why so lengthy, but I'll get there. The bike only has 25,000 miles, but the base gasket was leaking. So, what do you think? And I know this isn't going to be a 100hp motor so be nice. Thanks, Glenn
Last edited by homiegfunk53; Sep 2, 2013 at 01:20 PM.
Club Member
Joined: Jun 2007
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From: Bedford UK
Glenn, wise choice! You'll make a great Harley owner...... 
Just carry on the way you are. Fresh gaskets plus your cam and pistons should give you a great bike. We'll happily help you spend any spare cash you have!
Just carry on the way you are. Fresh gaskets plus your cam and pistons should give you a great bike. We'll happily help you spend any spare cash you have!
Seasoned HDF Member
Joined: Jun 2010
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From: Upstate New York
Only change I'd make is next time I'd bore the cylinders, not the heads.
Can't figure out why all that needed to be done at 25,000 miles unless that bike had been horribly abused. Evos run a lot longer than that in my experience. I have 91,000 on my current top end.
Can't figure out why all that needed to be done at 25,000 miles unless that bike had been horribly abused. Evos run a lot longer than that in my experience. I have 91,000 on my current top end.
Last edited by Uncle G.; Sep 2, 2013 at 01:02 PM.
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Cruiser
Joined: Aug 2012
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From: CT
No the base gaskets were leaking so I decided to do it while its all apart. And I did bore the cylinders.
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Seasoned HDF Member
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From: Coromandel Peninsula New Zealand
Why did you go to max oversize on such a low mileage motor?
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Thread Starter
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Cruiser
Joined: Aug 2012
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From: CT
Max oversize on the cylinders? I can still go .040, get a 85" kit or resleave them no? Plus I'm 26 and all my friends have new bikes while I'm on a 92 carbureted.... And hell I can get stock 1340 cylinders a dime a dozen on Craigslist.
Seasoned HDF Member
Joined: Dec 2010
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From: Coromandel Peninsula New Zealand
Just wondered......forget the 85 kit, its a total scam and won't give you anything in exchange for your hard earned dollars. Your mates may have new bikes but you have the cool bike....ain't nothing wrong with a 92 Carby....as they will all find out!