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General Minitrail Talk
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Doctor, I've got no pulse!
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<blockquote data-quote="69ST" data-source="post: 184710" data-attributes="member: 5"><p>The trailbikes kit is the most widely used; it's been around from the beginning, hands-down the most popular item. Paint the jug black and it'll look nearly stock. Obviously, the aluminum jug (iron sleeve) looks different, the fins are thinner & the texture is smoother than OE cast iron.</p><p></p><p>You can retain the stock induction assembly, complete. Just be sure to remove the restrictor cone, if present, from the inlet side airbox boot. Add the "fast road" cam, upsize the C/S sprocket 1 tooth and you should see high-40s once the motor is broken-in and the carb tweaked to perfection.</p><p></p><p>Dunno why I couldn't see the rocker pic until now. Those grooves were machined...and they appear to be outside the contact area. Cam lobes look decent, not liking the look of the rocker wear; not sure if I'm seeing camera artifacts or actual wear. New rockers are cheap. Valves look better than most, intake looks to be in the early stage(s) of becoming "tuliped"...the contact band is like 3x wider than it should be. I'd replace both valves and verify seat condition + contact bands - before lapping. If either is off (too high or too low) a light cut should be all that's needed to get them centered.</p></blockquote><p></p>
[QUOTE="69ST, post: 184710, member: 5"] The trailbikes kit is the most widely used; it's been around from the beginning, hands-down the most popular item. Paint the jug black and it'll look nearly stock. Obviously, the aluminum jug (iron sleeve) looks different, the fins are thinner & the texture is smoother than OE cast iron. You can retain the stock induction assembly, complete. Just be sure to remove the restrictor cone, if present, from the inlet side airbox boot. Add the "fast road" cam, upsize the C/S sprocket 1 tooth and you should see high-40s once the motor is broken-in and the carb tweaked to perfection. Dunno why I couldn't see the rocker pic until now. Those grooves were machined...and they appear to be outside the contact area. Cam lobes look decent, not liking the look of the rocker wear; not sure if I'm seeing camera artifacts or actual wear. New rockers are cheap. Valves look better than most, intake looks to be in the early stage(s) of becoming "tuliped"...the contact band is like 3x wider than it should be. I'd replace both valves and verify seat condition + contact bands - before lapping. If either is off (too high or too low) a light cut should be all that's needed to get them centered. [/QUOTE]
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