i did some search's on the tread and came up with nothing. what is a good thing to do to an fx140ho motor to get a some more power? the motor is disassembled. (running fine just curiousity by the owner) and i know its 160hp stock but is there anything i can do without compromissing the realability? these are techincally the most realible (stock) motor that is in the yamaha watercrafts right? my cousin has an fx140 cruiser its got good mid and top (for its weight) but off the line its a dogg! the plan is to put this motor into my gp hull so i can have a reliable engine and keep up with my friends rxp.... any advise would be appreciated. i was told already to change the timing belt tensioner, anything else?