hello i have a 85hp force and i am trying to time my motor but i don t unerstandy. i don t have a book. on my fly wheel i have 3 marks together and the center mark has yellow paint on it. then to the right of these tree marks i have one mark that stands alone. then i run the motor i put a timeing light on it the 3 markes are about an inch to the left when you are faceing the carbs. i don t know how to get 28 to 30. and do i adj the timeing with the adj right under the fly wheel if not were do i adj it. the motor run i have put it on the water it just seams like it does not fast . but the boat does run and moves. i just would like to check the timeing. thanks dave