Setting the jet screw

mick97

Petty Officer 1st Class
Joined
Mar 24, 2010
Messages
207
I just got a new head gasket on,and all is well :)
I did mess with the jet screw a little when i was trying to figure out what was wrong before.

I know its like 1 1/2 turns out its suppose to be.If I go to 2 full turns out,that uses more gas correct?
No biggy.But was just wondering if it will give me some more power to plain out quicker..Or at least a little more horse power lol.

Thanks,
Mick
 

Jiggz

Captain
Joined
Oct 23, 2009
Messages
3,909
More turns out will give you a richer idle causing plug fouling.
 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,072
The air screw is for idle operation only.
​Does nothing for top end.
It allows the air/fuel mix to be set right so the idle is smooth.

Just guessing what motor you have ??
They can be set differently on different motors??

You can add a signature at the bottom of your posts and include the boat info and a pic if wanted.
That way people can tell what you have ay all times,
 
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