Harley Davidson Evolution Engine Vibration

The Evolution Evo engine is a V-twin engine that has been manufactured and used by Harley-Davidson since 1984 for a variety of different Harley motorcycle models.

Harley davidson evolution engine vibration. The enormous weight is thrown around as these pistons move back-and-forth leading to the vibration you feel in the motorcycle. If the motorcycles have been modified to rev higher than 5600 RPMs an engine mount bracket can vibrate excessively causing the problem. Harley-Davidson motorcycles especially older models vibrate because of their engine design.

The recall covers motorcycles from the 2014½ model year. The 30-degree offset creates a 90-degree firing order that produces a smooth power delivery especially at higher rpm and the power pulses of a 90-degree firing order may improve traction in some off-road riding situations. My gut feeling based on about 40 years of pulling wrenches on commercial vehicles is bad tranny bearings but I have heard of so many different causes of vibration issues on these bikes that I didnt want to pigeon hole the problem just to the tranny.

A loose top motor mount or loose primary chain can make the evos. There is no vibration to the mirrors at all none of the old problems we heard about. Without locating dowels engine vibration allowed heads to walk on their gaskets making them leak eventually.

The engine was mounted directly to the frame from 1957 through the 2003 model year. Loose belt will vibrate hard heavy low frequency vibration. The Velva Rides patented design act like a miniature shock absorber by isolating more of the engines vibration than the stock stabilizer for a smoother more enjoyable ride.

Fits rubber mounted 5-speed FLTFXR models 1980-up and Dynamodels 1991-1994. I had a bad vibration coming up through my bars and thought it was a engine mount turned out to be me over tighterning the exhaust nuts i put new exhaust gaskets in and didnt do up the nuts as tight and vibration disappeared other possible is amke sure the exhaust is not touching on ur frame anywhere as the vibration can travel it may not be ur problem just sharing what fixed mine. Simple test to rule out tires Pull in the clutch when vibration is at its hardest.

Through its history Harley-Davidson has embraced technological evolution while respecting the heritage of our brand with engines that produce real-world performance for real-life riders said Harley-Davidson Chief Engineer Alex Bozmoski. When you reach the speed that the vibration occurs have you pulled in the clutch to see if some of the vibs are coming from unbalanced wheels. If it goes away then not likely wheel or tire issue.