20 min ride, cool til the cylinder feels cool, 20 min ride, cool again, run it easy for 2 more gallons, then punch it...!! Easy throttle, not too low, not too high during break in. Dont short shift, and dont stay at one RPM very log - up and down the RPM range smooth and easy....Dont be timid, just dont make it pull too hard or too high...
I use Golden Spectro at 50:1 - never had a problem in 20 years so I'm afraid to switch...