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Burger King Moto4 rebuild / restoration


BoogWar
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Hey folks,

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!

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  • 2 weeks later...
Dream Car Giveaway

Leave the semi-auto clutch, it's bulletproof. Displacement - you're pretty much locked in. Brakes? I'm right there with you, cable drums are next to worthless, I've converted all mine to hyd disc front and rear - Ebay has lots of parts that will swap in, most of the yamaha hub/discs will fit the rear splines on your right wheel - I use a big bear front hub/rotor with a honda atv caliper on the rear of my kodiak and the wife's timberwolf, any rear MC will work, mount it to the frame and connect it to your stock pedal. Front brakes I look for something with the same bolt pattern and get the whole hub/disc and mount warrior calipers (they're cheap and dependable), again, any MC will work up there on the bar - wrecked sport bike MCs are cheap with rash on them.

Good luck!

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