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Discussion Starter #1
New to the forum lookin for some info on my rebuild.

2011 honda rancher 420 Fm
3 inch lift
Snorkeled
14" SS wheels
30" Silver Backs
Big Gun Exhaust
K&N Air Filter

My fourwheeler randomly started smoking a couple weeks ago, drownded it out bout 3 years
ago, flushed it with diesel, then twice with oil been runnin good ever since, then started pouring white smoke.

Pulled the top end off, found burnt exhaust valve, blown head gasket and coolant in the jug, then found alot of blow by, so i figured just a top end rebuild, pulled the jug and found broke piston skirt and alot of rod play so i pulled th motor tore it down, all i found in the case was the piston skirt, and a lil bit of sand and dirt in thr catch pan, roller bearings all look good but im conserned about the rod play!

Does anybody know the specs on the rod play?

Also need the bore I.D. And the Piston O.D ?

Need to mic everything up and see how bad its warn, hopin the rod plays good so all ill have to do is a top end rebuild!

Thanks for any help or suggestions
 

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5,956 Posts
You can get a copy of the factory service manual HERE. Everything you need to know is in there. Good luck, hope you can save it!

Welcome to the forums!
 
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