The vent line at the very top of the oil tank. When you do prime a pump,this hose has to be clamped with a pair of vice grips close to the tank nipple because of a small condensation slit in the hose about 2 inches out from the tank.Crank the machine up and after a couple minutes you can pull the vice grips off. If you have good ears you can usually hear a hiss of air from the tank. Again I only did this when I cleaned tank screens or on engine rebuilds. Just run the engine,you'll be able to tell real quick if something is wrong. Hopefully again it's a clutch problem,but you never know on a used machine.

 

Also i used polaris 5w-50 oil if that means any thing

 

Doesn't hurt a bit to use 5w50. Plus that's what weight you get in PS4 Polaris oil now.http://polarislubricants.com/atv.asp

 

Ok well im going to try the purge thing even though if it was from lack of oil the damage is done..n going to run it and see what happenes

 

Went for a half hr ride this am..i am stumped, started fine no smoke typical fuji 500 motor noises.ran fine the whole time with out a drop of smoke or power loss or noise.only thing i noticed is a flat spot in the belt from coming to an aprupt hault..again i am stumped

 

A flat spot? Or 'hour glassed'? Idling in gear, being in the wrong range will do that.

Have you cleaned the clutches?

 

When the motor stoped the tires locked up for a bit then spun..i could smell the burnt belt