i have a 94 xp (657) when i give it full throttle it takes off for a lilbit then it like bogs down kinda like if theres no fuel or something . if i let off the throttle for a second then give it full throttle again it will take off good then it does it again. is it the low speed settings which are 1 1/2 out from lightly seated . or high speed settings which are all the way to the right on both carbs. its idling in the water at 1500rpm. the engine does idle smoothly tho its a little ruff. how can i set it so i can give it full throttle and it doesnt bog down??