hi all, hoping someone can help solve this problem...my kid rides a youth atv (arctic cat 90) it is a brand new 2018--when he picks up speed (10mph or above) a high pitch revolving squeal (like someghing going round and round) is heard from behind--strangely you cant hear it when youre actually on top of it...there is no noise at all when pushing it by hand with the engine off or going slowly..could it be a belt whining?? squeaking zirks?? i did find one zirk on the axle..i posted on an arctic cat site and got no response