Buy a rebuild kit and remove all of the old parts, replacing them with the new ones.
not on this site
the raptor 350 is faster but not by much
37 hp.
8.5:1
The Valve clearance for a 1993 TRX Honda Fourtrax is 0.03 on a feeler gauge. 0.03 -intake 0.03-exhaust
Neither, it'd be closer to half that amount for both.
If your carburetor goes out, it would be safer to buy a new lawnmower. Home repairs to a carburetor can fail, causing injury, or in extreme cases, death.
There is an idle adjustment and a air to fuel adjustment
Rebuilding the engine on an 86 Honda TRX 250r extends its useful life and performance. A typical rebuild includes replacing the piston rings and all bearings.
on the frame rails behind the front skid plate
.003 on intake and exhaust
The spark plug gap for this kind of ATV is .035.