78 Yamaha SR500 Race Practice 2017

This is the first round after engine build, going out in first practice session. The hp bump was nice 9. Pulls Hard out of the hot lane.

https://sr500forum.boards.net

Not a trackday noted in the vid, it was practice before the days race...
540cc race cam, hi comp piston, and many more upgrades...
The old guys love my bike at the track, reminds them of the old days, the Thump is heard all the way around the track even over the sound of the buzzing bees of 4 cyl..