i have a '86 90hp yamaha. i had the fast idle up when i first started it before getting it off the trailer. i guess the engine hadnt wound down to normal idle before i put it in reverse, and when i did it made a loud clicking sound. now it makes the same sound whenever its in reverse. it still spins and can be used for turning, but as soon as i give it too much gas it slips and starts clicking. i guess some of the gears behind the prop got stripped? this sound right?