Re: yamaha yt6800 pto

I've been lucky so far with the PTO on the 6700 but the way mine seems to operate is that it is an electrical clutch not unlike that of an air conditioning pump clutch on a car. An electromagnet that engages the components when you hit the switch or the system calls for the cool air. If all else fails would it be possible for you to obtain a A/C clutch from an auto boneyard and fabricate the frame to fit the replacement part I did this once for a remote salt spreader.
Just and alternative if you get desparate.