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Just curious what Max RPM range people are running to get to top speed and how much of a difference does an RPM range of 3500 vs 4000 have on top speed? My Max IV with a 20hp Kohler tops out at around 12mph at 3550 RPMs. I am working to increase the RPMs through governor adjustment but wasn't sure how much that would impact the top speed if I was able to get to 4000 or more. I guess I need some insight on what RPM I should be shooting for?
Also, My clutch doesn't appear to be fully engaged at my highest RPMs, not sure if it is that my RPMs aren't running high enough or something else. I have a new belt installed and got similar speeds with the prior overstretched belt.
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