Im a newbie in them har parts. I gave a friend a junker side by side fridge and he gave me an old junker 89 Yamaha Moto 4. Wasn't a swap, it just worked out that way. I love to tinker, and it has low range and reverse so I thot would make a tractor out of it. I farm; too old to jump and stuff! But it don't run (motors not seized though) So like some people who curl up with a good book thought I would curl up with a good tinker LOL. I am Mario James, hailing from a little rock south of the Florida panhandle called JAMAICA.
I've looked at the stickies and I don't see an manual for my quad. I don't know if any one on this forum might point me in the direction of a service manual for a 1989 Yamaha Moto4 250 cc ATV? Because I intend to farm with it, I wonder if a simple head - sleeve piston change might bump up the displacement to 300cc, or even 350? (YFM motor) Also could anybody tell me if anyone has done a brake conversion to hydraulics at both ends...instead of the cable? (cables don't last long in every day dirt an mud). Also wanna put the clutch under my left hand where it belongs, and do away with the centrifugal setup. Thanks and cheers to everyone!