Almost stalling at idle

[Anthonym2]

Hi all
Ive noticed latley that my boat seems to almost stall out while idle. It hasn't actually done it yet but was close today....have to give it a little gas. Also had a little trouble starting it toady which ive never had before since ive owned it.
Any suggestions?
Can i simply adjust the idle screw?
The carb. was completely replaced 2 years ago when i bought it...its a 1980 with a 140 horse mercruiser.

Thanks!

 

[Grub54891]

Have you tuned it up lately? Plugs, points, wires, timing, fuel filters?

 

[Scott Danforth]

doubt its an adjustment, however you could try. what is your idle speed?

being 1980, it should have points. have you set the dwell and timing this year? cap/rotor?

could be crud in your fuel system.

 

[alldodge]

I would try adjustment first and check your fuel filter contents. Then check your specs (timing, dwell). If that didn't get it, you probably got some crud in the carb

 

[SOG3]

I would try adjusting the idle screw before going through the other steps suggested .If after this,if it idles smooth and accelerates like it should you have solved your problem . JMHO

 

[sparsons92287]

Cleaning the carb fixed the issue when I had a similar problem

 

[93nitrotf170]

Clean the carb and then go from there