Re: mph issue
I had the same issues with my bike bogging down at the top end. I figured it was too rich because I would get on a long straight away and run at full throttle. As the fuel in the carb float bowl was consumed it leaned out the mixture and the motor accelerated about 3-4 mph then would die from too lean (out of gas). That's how I knew it was too rich. If you do that procedure and it doesn't accelerate before it dies then it might be too lean.