I put a tiny tach on the motor to see what it could tell me.
High idle - 3620rpm
Blades engaged but not mowing - 3510
Mowing 2" of fescue level ground - 3420
Mowing 2" of fescue uphill - 3050- 3350rpm depending on speed. The 3050 was at about 1/3 to maybe 1/2 of the control stick fwd range. To get 3350 uphill I was literally crawling at like 1mph.
Does this sound like a governor issue? I could not find much searching here or google about the FD750D but I did find a post that mentioned coils dying under load. Could that be my problem?
Any feedback is greatly appreciated!