I´ve had my GS850 about a year. 1979 with 35,000 miles, just tuned and runs the best ever. She´ll pop up to 100 on most any on ramp, but the clutch has started slipping under stress. About 3 oil changes ago I put some slick stuff in the oil and thats when it started slipping so i changed that out right away but damage was done. Anybody suggest a good flush to help it recover? Also is there an aftermarket fuel injector system to modify it? Electronics to replace points? just ideas....Thanks