Remove your belt and bridge the key stock across the backside of your primary. With your caliper measure from the key stock to the outside leading edge of your secondary. The measurement we have found that works is:
850. 2.57”
800. 2.60.
16" 800 w/o Electric Start. Witness marks on my (new gates) belt are (none) on the motor side, ~.125" on panel side.
I took a measurement and I am more than .25" SHORT of your recommended amount for the 800. What am I missing?
Measuring:
outside (panel side) of bar stock to the outside face of secondary (Panel side), clutch pushed in, no belt installed (Shouldn't matter).
NO spaces installed on the secondary between bearing and clutch except the required one from the factory (washer).
Last gates belt lasted 200 miles before it exploded, full discloser, I folded it. Sled down RPM currently. (7900 / 8000)