I have a 650 tunderbolt outboard on a15 foot trihull I can only get 26mph at top speed I have to use the warm up lever for my throttle and use ny gear shift to bring up the advance on the dist just got this boat and motor and Im not sure this is the correct way to run the controls or is there something missing the motor runs well but Im not sure if the timing or the carbs are set right service place backed up 30 days so I thought someoe may have some Ideas thanks slow boat in china maine