A833 4 Speed Problems.

Check the air gap between the clutch disc and pressure plate when the pedal is fully depressed.

Needs to be a minimum .060
I had bent / modified my clutch cross- shaft and was only getting .040......shifted fine when cold, but as things got warm / hot and expanded the gap decreased even further, it became tuff to get into gear ( 1st or reverse) yet alone power or speed shift.

Easy to check and verify if you have an inspection cover on the bell housing.

Bent mine back and added a dent in the header tube for clearance and all was well.

Also added the modification to the grandma version clutch pedal for further /faster operation.