I am the new owner of a 16 HP Mus Skipper Twister. A guy bought it and never got around to putting it all together. The price was right for me. Took it out today for the maiden voyage. I have it on a Sea Nymph 1542 and we estimated 15 mph wide open which is fine for getting to where we want to go. Did very well running thru lilly pads and mud. Had to bounce it a few times to clear the weeds, but we never stopped. It has the anti cavitation plate and I wonder if I have it set right. At full throttle the motor wants to turn hard left. Can you rotate the plate slightly to offset this? I may have the trim set too deep, as the plate is under water when running. Where should it be? Second question deals with the throttle. The thing came with a detented throttle that I changed up with a dirt bike throttle, which I like lots more. Engine is a Honda 420 clone. Doesn't seem to want to idle down. Am I missing a spring somewhere? Any advice would be greatly appreciated.