Thumping noise at low speeds

Joined
Dec 1, 2015
Messages
123
Location
Northwest River, NL Canada
Hey guys and gals, my sled has developed a thump thump thump at low speeds mostly at slow take offs, but it disappears when I'm going abit faster around 20 km per hour or so.
I've checked the driven clutch has 1/8 to 3/8 of an inch side to side, didn't notice that before , and I changed the gear oil, all good, the gears, chain and the tensioner seemed fine, I'm worried it's something worse.
No oil nothing in the belly or the floor, I'm going to get a new belt, but I'm worried it something worse than the belt.
Anyone had this before??
 

this happened to me when the wife burnt the belt off because being to easy on initial take off. took a few chunks out of the belt. it is worth a look to take the belt off
 
it thin it pretty good with a few rib chunks taken out. she at least new there was a problem. changed to a new belt a drive on. she is learning to get on the throttle!!!
 


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