Harley evolution engine diagram. 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. Harley evo oil flow diagram. Harley davidson seems to work on a completely different clock with new engine designs arriving every 15 years or so. 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.
The evolution engine on harleys 1100 models has a larger bore at 34 inches and the same 38 inch stoke. How a harley davidson big v twin engine works harley davidson 103 engine cutaway view and demo duration. The evolution engine on harleys 883 models has a bore of 3 inches and a stoke of 38 inches. Between 1936 and 2003 engine designs released by harley represented a constant tweaking of the same basic v twin 45 degree air cooled engine design.
The harley evolution engine helped bring harley davidson back from bankruptcy. 1999 harley evo oil lines diagram. 5 each online or download your harley davidson manual here for free. Lots of people charge for motorcycle service and workshop manuals online which is a bit cheeky i reckon as they are freely available all over the internet.
It was made in the 1340 cc 82 cu in displacement for harley davidson big v twins bikes replacing the shovelhead engine until 2000 when the last evo was placed in a production factory custom fxr4 fxr2 and fxr3 were the first cvos. Harley davidson evolution engine diagram here you are at our site. Tatro machine 126348 views. This was a major design advance for harley davidson in many ways the harley evolution engine is most distinct from earlier harley davidson engine designs by due to its reliability oil tightness and ability to run hard under all circumstances thousands of miles farther than any of its predecessors.
After starting the engine look into the tank to verify oil movement. The evolution engine popularly known as evo is an air cooled 45 degree v twin engine manufactured from 1984 by harley davidson for the companys motorcycles. Many people attempting to find details about harley davidson evolution engine diagram and of course one of. This was filmed at the harley museum in milwaukee.
I am using a softail horseshoe tank and running a 93 evo motor.