Harley Davidson Xr 750 Engine

Early XR-750s though were more stopgap than serious racer their development rushed by new American Motorcyclist Association rules allowing any engine type a maximum displacement of 750cc plus the use of purpose-built dirt chassis.

Harley davidson xr 750 engine. The twin-cylinder 748 cc engines develop white-knuckle torque that continually proved successful on oval dirt tracks. It was built by XR-750 master engine builder Mike Wheeler and raced by 20 Johnny Murphree. So this streetable XR750 from Brad Peterson is right up our er street.

If you are a moderator please see our troubleshooting guide. Must see to appreciate. The updated engine used aluminum cylinders and heads to address the overheating issues that plagued the XR model.

1972 Harley-Davidson XR-750 flat track racing motorcycle Engine no. Harley Davidson XR750. Read the riders comments at the bikes discussion groupAnd check out the bikes reliability repair costs etc.

XR750 Specs Using the bottom end of the Sportster XLR motor Harley engineers achieved the desired 750cc displacement by decreasing stroke length from 381 to 2983 ad increasing the bore. Listing 1-16 Of 16. Find Used Harley-davidson Xr750 For Sale with Photos.

The XR750s modified engine delivered 82HP at 7700rpm and had a top speed of 115mph. Speaking of flat track there is a monumental occasion happening this Saturday October 6 at the NJ Meadowlands. Also these special frames and XR-750 engines are not built to withstand many miles when ridden on pavement.

1972 Harley-Davidson XR XR750 XR-750 Rolling Chassis Dirt Track Racer W Parts. First year of the alloy head XR Raced throughout California in the 1970s and 1980s Delivered in as-raced unrestored condition This 1972 alloy XR-750 was purchased by Mike Boyes from renowned Harley tuner Michigander Tex Peel. The new motor produced 73 hp straight from the drawing board and revved to 8200 rpm with comfort.