pro rmk 155 axys

Hi. Anyone else who has problems with the throttle? When you go around 5000-6000rpm and release the throttle it's still hangs on in about 1-2 secs.. If so, what have you done to get this problem solved?

Just bought a 2016 pro rmk 800. My buddies noticed it before before me but there’s no cooler under the tunnel. They ride switchback assaults and one has an sks that all have the cooler under the tunnel. Should I would worried about it over heating and doing damage? I’m assuming that Polaris...