I have an '06 S.E. 660 last week shi found quick sand. Now it smokes terribly and the oil is cut w/t gas. I flushed crank case w/t new oil several times still no improvement. guess its time for an upgrade. Know of any good links? I have three S.E. rhinos two of them have always smoked a little. there jetted w/t exhaust and cdi mods.