Polaris ATV Forum banner


  1. 550 XP whine

    ATV Repair and Maintenance
    Let the fun begin!! So this past weekend had my 550 out helping a buddy on the farm all is well, then I went to take my 2 yo for a quick ride and noticed a new noise. It is a whine that directly relates to engine rpm doesn't matter if bike is in P,N,R,H or L, appears to be comming from primary...