Carburetor choke always open

[sebas54]

IS the craburetor choke valve supposed to stay open always? It's a 1988 4.3l gm merc. alpha 1

Mine is always open and was wondering if that is the reason I an getting smoke out of the breather tubes and carburator at high rpm's.


If not is there a way to adjust it?
thanks

 

[Silvertip]

Re: Carburetor choke always open

The only time the choke plate should be closed is on cold starts. If it is standing perfectly vertical on a warm engine that's normal. Smoke should not come out of the carb at any time with the engine running although you might see a little whiff after you shut it off.

 

[sebas54]

Re: Carburetor choke always open

Even when the engine is cold it is open. Is that ok?

Thank you

 

[jerryjerry05]

Re: Carburetor choke always open

Sounds like you have blow by. Do a compression check and let us know the results.Jerry

 

[Haut Medoc]

Re: Carburetor choke always open

Even when the engine is cold it is open. Is that ok?

Thank you

It will make cold starts harder, but won't do any harm.....
See what is making the linkage stiff by moving it up & down, it might just need some lube....

 

[sebas54]

Re: Carburetor choke always open

I did the compreesion test and this is what I got

150 150 150 135 150 145

Thank you.