Just wondering if anyone has bin done this road? When I start my sled without touching the throttle it idles fin but if you give any gas it will not drop back below 2400ish ???
without any more information, I would check:
-throttle free play
-throttle cable condition / routing
-tps / idle adjust
-foreign object stuck in throttle body
-cracked / leaking reeds
-leakdown test / inspect plugs for lean condition
if you could tell more of the story, it could be narrowed down possibly.
Mine was idling high and it was just snow stuck in the thumb throttle holding it open a little. My buddies pro was doing it too that day and I actually had to catch it as it took off on it's own headed to the trees. Hopefully it's as simple as that I'd check that first!