Help tune a carb

[NvrDwn]

So I have a carb with no caps so its fully adjustable. The thing is the carb was completely broken down and I dont know how far to turn each of the three to be close to the factory settings. Is there an easy way to do this, for example screw it all the way down then back 3 full turns??

Thanks.

 

[Crispexx]

You’ll want to look up what saw it belongs to and find the factory settings for it. So if it says 1 turn out, then turn it all the way in (gently) then turn it out 1 full turn. I believe some carbs will have different factory settings even if they go on the same saw.


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[NvrDwn]

You’ll want to look up what saw it belongs to and find the factory settings for it. So if it says 1 turn out, then turn it all the way in (gently) then turn it out 1 full turn. I believe some carbs will have different factory settings even if they go on the same saw.


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Its a 361. So stihl has this info on their website?

 

[Vintage Engine Repairs]

 

[Crispexx]

Its a 361. So stihl has this info on their website?

It might be in the owners manual online, or just google ‘ms361 carb default settings’ and look around.


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[NvrDwn]

View attachment 873866

Great. If I'm reading this right 1 full turn out from fully seated.

 

[Crispexx]

Great. If I'm reading this right 1 full turn out from fully seated.

Yes, and check your LA settings. I normally set mine so it just starts opening the butterfly valve, and adjust from there.


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[buzz sawyer]

1 turn out is the initial setting. You still need to adjust each saw based on fuel mixture, altitude, temperature. Lots of threads on this on this site.

 

[U&A]

No matter the saw I always start with 1 to 1.25 turns out on the L and H. Then i go from there. The Idle screw i start off by turning it most of the way out (not contacting carb anymore) then i turn it in just to the point that it touches the throttle.

Thats my starting point.


Sent while firmly grasping my redline lubed RAM [emoji231]

 

[rupedoggy]

Then when you get this all sorted out and if it still does not run like it is supposed to, you will have to find out what is wrong other than the carburetor.