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Speaking of governors, how far can one go in adjusting a governor up without taking it off? For example, could I adjust the governor of a Predator 420cc to run at, let's say, 4500rpm? If so would the higher rpm put so much strain on the motor as to cause a lot of reliability problems or greatly...

A related question. On a series 30 torque converter, what is the difference between using a stiffer spring vs. moving the end of the spring to a different hole?

Thanks for the comment. Nevertheless, I would like to learn about what is involved in tuning the device to the load characteristics, in particular how to assure that downshifting starts at a certain torque/rpm point, and also how much downshifting occurs for each increment of load.

Thanks. I will look at it.

Would destroying the belts come from additional wear as the pulleys change diameter? ---------- Post added at 04:35 PM ---------- Previous post was at 04:26 PM ---------- From what I read there is a way to open up the driver pulley (clutch) and set the engagement rpm. Does that sound right...

I am not a Kart owner, but I am interested in learning more about Karts. In particular I want to learn about torque converter/CVT tuning/adjustment. Let me run through a scenario with a question or two at the end. Suppose in a recreational application I have an engine that is nominally 13...