Honda xr250r - Over reving on idle

I recently took my carb off and cleaned the jets I also changed the oil and plug on the bike. The problem is that for some reason when I rev it up it sort of just hangs there and after a while it will drop back to idle again...any ideas?

Make sure you don't have any air leaks around the front and rear carb boots.

i don't think i do

cables routed correct?

yes the throttle is opening and closing

Make sure you don't have any air leaks around the front and rear carb boots.

ding ding ding! WINNAH WINNAH CHICKEN DINNAH!:thumbsup:

Take the manifold boot off between the carb and engine. Use a small dab of grease if you need to help make the seal. This sounds like exactly what is going on.

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