most times the rad looks really clean but u really need to get in there and flush rad out with water from behind it going in between fan blades and from sides,
i've had it happen once , u can see dirt mud but its stuck in there, if u have already done that than u can park on a small hill or lift front of quad to purge air out and burp hose but if u have not just replaced fluid its probably not air in system,
obviously never open cap if fluid is not cold or then u could suck air in system, let fan cycle on off a couple of times with front jacked up or parked on hill.
did u check underneath quad to see if weeping hole is dripping when quad is warmed up ?
2016 Scrambler 1000 xp
GSE single slip on muffler
2016 Sportsman 570 non ebs
ITP XTR radials
Last edited by sportsmandan; 07-16-2019 at 08:44 AM.