i just bought this ski and put it in the water over the weekend it worked great when i first took off and all the time i was running over idle but when i would stop and try and take off full throttle it will stay in idle for like 10 seconds then take off and other times it will work like it should and just take off the guy i bought it from put new carbs on by the dealer in 04 they are not the same as the ones that came on the ski originally im just looking for some idea on where to start thanks.