Anyone now where to get Big bore sleeve for LT250R 88-92 I saw one cylnder on ebay where it say thick sleeve borable to 120 instead of just 80 over. The guy says that when bored to the 120 over that makes it a 310 . how exactly do we find one of these sleeves. how do we determie size of cc when bore over, my cylnder is 90 over and was told 270cc is that right?80 over is supposed to be max but went 90 over and ran YZ250 piston from 86 bike and all has been fine. but I would love to have it more like 300 or 310 any input let me know.
K-dog

 

LRD