Low idle

J

jetman42485

Cadet
Joined
Jun 1, 2012
Messages
26
I think my 1985 4.3 cobra omc has a low idle. What is it suppose to idle at? When I start it it seems a little low,and when I but it in gear it gets kinda rough but when I give it I'll gas it's fine. It's little below 1000,maybe like 700-800 rpm, Sound right? Thanks
 
Scott Danforth

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
47,554
Re: Low idle

6-700 RPM if the idle is not smooth, you may have to look at the carb, specifically the idle circuits.
 
J

jetman42485

Cadet
Joined
Jun 1, 2012
Messages
26
Re: Low idle

I'm very new to the in board boating thing,I've mostly been into atvs ,motorcycles and snowmobiles, so what should I do or be looking for with the idle circuits? If it helps every once in a while when I put it in gear it will die before I can get the rims up. But mostly it just gets a low rough idle but when I give it gas it clears up
 
Scott Danforth

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
47,554
Re: Low idle

if the idle is rough, you most likely have crud in the carb. you will need to rebuild the carb. make sure the idle circuits are clear.
 
You must log in or register to reply here.
Top