So not trying to hack this thread, but thought I would add some pertinent info. I just finished break in on the HS and also a final ratio change on the shifter build. I have an accurately set up speedo and a tach. With the lowered over all ratio I was surprised at the results. The engine turned 6720 max rpms. It has the square cdi. Maybe its limited at 7k?
Pretty sure the tach is right. Interestingly its faster in 5th of 7 gears. 6&7 make nice relaxed cruising gears in the max torque band. Max speeds were 36-5th, 33-6th, 31-7th. Interesting little motor. I honestly think it had a bit more as I ran out of road on my test circuit. Maybe it's a 7k engine.