When did Harley start using the Evo engine?
1983
The H-D Evolution V-twin was introduced in 1983. Here’s a look at the technical elements and developments that allowed the 80-cu. -in. engine to save the company and bring it into the modern era.
When was the last EVO engine remanufactured?
Just saw a story on HotBike’s website – they toured the Harley factory and went thru a Evo being remanufactured. “The Evo cam bearing used in all reman engines is the most recent bearing used in Evolution production in 1999,” said Scott Miller from the factory. Is the 99 bearing a good one? Do you think I should still look at replacing it?
When did the Harley Davidson Evolution engine come out?
The Evolution (Evo) engine is a V-twin engine that has been manufactured by Harley-Davidson since 1984 for a variety of different motorcycle models. The engine design is often credited with saving Harley-Davidson from bankruptcy after the management buyout and subsequent reorganization that the company went through during the early 1980s.
Where can I get parts for my EVO engine?
For now go to Bandit.com and follow their directions to register your EVO for their parts book. This will get you into looking at copies of Harley parts books for your year. Go to engine and oil pump and you will find the tappet screen and where it is. It will also show you how it goes back together.
Are there any problems with the EVO engine?
The Evo’s don’t have heat problems, don’t have chains or belts in the timing chest that can do really bad things internally, don’t have problems with the crank, or the main bearings, don’t have problems with the comp sprocket, etc, etc. Can you tell which one I prefer? Re-reading your post I see that your scoot has only done 32k miles.
Where is the camshaft located on The 1340cc Evolution?
The 1340cc Evolution utilizes a single, four-lobe, gear-driven camshaft located just above the crankshaft axis. While this simplifies camshaft replacement, it complicates the Big Twin valve train with tappet/lifters and pushrods that each deflect from the camshaft at wildly different angles.
Harley-Davidson Evolution engine. Also available in the Sportster model beginning in 1986, it was made in the 1,100 cc (67 cu in) displacement until 1988 and is still made in the 883 cc (53.9 cu in) and 1,200 cc (73 cu in) displacements for the Harley-Davidson Sportster, replacing the ironhead Sportster engine.
What’s the difference between a Sportster Evo and an Evo?
There are few differences in the construction of the 883 and 1200 cc Sportster Evo engines, the main one being a smaller bore on the 883 cc version.
How many cams are in a Harley Davidson Evo?
Harley’s decision to stick with the semi-unit construction of previous Sportsters resulted in a distinctly configured valve train. Unlike most of today’s motorcycle engines, the Sportster Evo uses just one cam per each overhead valve, resulting in four independent gear driven camshafts.