carb adjust on 1980 1/2 80 HP merc

[bigheaded5]

I acquired a 1980 80HP merc, and have done some work to it (water pump, head gasket) and it has good compression. I took the carbs off and cleaned them and realized the low speed needles were way different on each carb as far as turns out. One was 2 1/2 turns out and the other was 1/4 turn out.... The previous owner said he tried to adjust them ...scary having met the guy.

My question is...whats a good starting point for the low speed screws?

 

[bigheaded5]

Re: carb adjust on 1980 1/2 80 HP merc

yea, thanks for all your help... 83 views and NO help...wow

FYI I found the info I was looking for...1 1/2 turns out is the correct starting point....

 

[Chris1956]

Re: carb adjust on 1980 1/2 80 HP merc

Yes, you have the correct starting point for idle mixture adjustment. BTW- the final settings will likely bedifferent, although likely by an 1/8 of a turn or so.

ABTW - that motor does not have a head gasket.

 

[bigheaded5]

Re: carb adjust on 1980 1/2 80 HP merc

Yes, you have the correct starting point for idle mixture adjustment. BTW- the final settings will likely bedifferent, although likely by an 1/8 of a turn or so.

ABTW - that motor does not have a head gasket.

Yes.... for those familair with the motor, I figured when i said 'head gasket" they would know what i was talking about...It was a lot to type WATER JACKET COVER GASKET