Warrior woes

[dfroster]

My dads warrior with 3300 miles did something strange yesterday. After starting it and letting it warm up like normal, I gave it enough throttle to move it forward slowly (4000 rpm about), it would begin to move and then it would abruptly stop moving. The engine made a thum, thum, thum sound when throttle applied and it wouldn't rev any higher than 3000 rpm or so. Didn't matter how much throttle I gave it or for how long I held it. It would just make the thum noise and occasionly back fire. Eventually, after jabbing the throttle alot I could move the sled and after about a minute of that the sled would run fine. Started it up today this morning (started easily) and it did the same darn thing!
I'm thinking maybe a TORS issue. Maybe water in fuel. Maybe dirty carbs. Any ideas or thoughts?

 

[Mikey]

check the throttle cable adjustment. it like you said maybe the TORS.

 

[Black 1000]

I second most likely TORS

 

[low slung]

Temperture change with very low fuel in the tank will cause condensation in your fuel tank.Same thing happen to my warrior last winter,could barely move,massive backfires along with flames a one point.Had to change the plugs in order to make it work properly.