Re: Merc 9.8?
Well Bunky, That number would put whatever it is at a 1966 Model and it would either be a 3.9 HP, 6 HP, 9.8 HP or a 20 HP. Doubt it's the 3.9 or the 20 HP(I'm sure you would know that), so that leaves the 6 and the 9.8. That's about the best I can get ya for now. Others may know of a good way to tell the HP... Sorry... In the meantime, here's a place to take a look at for info....<br /><br />oldmercs.com/models.html#64-66
