1975 - 1976 9.9 Differences??

[Solittle]

I'm looking for a set of manuals for my 75 9.9. I saw a set on ebay for a 1976 and wondered what were the diferences between the motors.

 

[rickdb1boat]

Re: 1975 - 1976 9.9 Differences??

Hi SoLittle<br /><br />I can't imagine there were many, if any at all, changes in the years. Especially around 1975. They didn't make many changes to them at that point...

 

[OBJ]

Re: 1975 - 1976 9.9 Differences??

The only thing I can see is a change in carbs. In 76', there was three model runs. H, G and R. The G and R models used the same carb as the 75's. The H model uses a different carb body and high speed jet. I would suppose some upgrading in throat and orifice size??

 

[Chinewalker]

Re: 1975 - 1976 9.9 Differences??

Certainly no differences you'd notice in the manual as far as general service and such goes. Primary differences were in the decals...<br />- Scott

 

[BF]

Re: 1975 - 1976 9.9 Differences??

Hiya,<br /><br />Follow link below and check it out... I think that the major changes in the early years of those motors were: Point/coils/condensers to 1st gener CDI, then to CDI2... all happened within a couple years.<br /><br /> 9.9 / 15 hp article<br /><br />geeze, I'm jumping to conclusions... are you talking about OMC or MERC or what???

 

[Chinewalker]

Re: 1975 - 1976 9.9 Differences??

The CDI ignition debuted in 1977 on the 9.9 and 15. The '74 to '76 models used the low-tension magneto with the maker points, driver coil and external coils.<br />- Scott