what gear ratio do i have

pioneer17

Cadet
Joined
May 18, 2007
Messages
25
i have a 1999 225 merc efi and i was wondering what gear ratio i have. I counted the teeth on the gears the pinion gear has 12 teeth the forward gear has 22 or 23 teeth . is this a 1.75 or a 1.82 gear ratio thanks
 

pioneer17

Cadet
Joined
May 18, 2007
Messages
25
Re: what gear ratio do i have

sorry recounted teeth on forward gear in 21 teeth and 12 on the pinion gear.
 

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: what gear ratio do i have

So the ratio is 21/12=1.75....
 
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