77merc thunderbolt 500 carb settings

bb44bb

Cadet
Joined
May 30, 2008
Messages
15
Just got kit changed all gaskets
I have a screw just to the right of the top of the carb
and a brass screw behind the first down about 1/4" this one was turned all the way in (why?)
Question is which is high speed and low
the first screw mention was 11/2 turns out on both carbs could that be correct
and which is high and which is low speed
 

Plainsman

Rear Admiral
Joined
Apr 2, 2006
Messages
4,062
Re: 77merc thunderbolt 500 carb settings

The screws that were out 1 1/2 turns are the mixture screws. That is all you can adjust.
 
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