Man today brought back some MEMORIES!!! 10years ago I had a 1986 mx 470cc. I stripped that old sled, long tracked it to a 121" as they were only a 116" painted it decaled it with 98 MXZ decals, red ski skins, bored,ported,polished the engine. I sold it to my cousin almost 10yrs ago, he phoned my yesterday and said the old yellow rocket finally got tired. After 5800miles it finally lost enough compression she just couldnt bare another 2 STROKES. So he shipped me the engine and were goin for round TWO.