SD 114 carb settings?

[JaysSD114]

I recently replaced the tank vent tube on my SD114. The saw has always died if you let it idle for more than a few seconds. The tank vent line just rotted off and has prob been causing problems for a while. I set the H side screw to 1 turn out and L side screw to 1 1/2 turns out and then set the idle after that. Didn't know if I need to adjust it differently or not . Those are the factory settings from what I've seen.

 

[JaysSD114]

With the saw set back to the factory settings it is idling great and is very responsive off idle. To set the high side, should I do it in the cut and tune for peak rpm in the wood?

 

[scottr]

My 10th Edition Chain Saw Service Manual says ," Initial setting of low speed mixture screw and high speed mixture screw is one turn open on Models 114, 117 and 119 ."
I tune my 112 so it cleans up in a normal large cut .

 

[JaysSD114]

Ok thank you! The saw really wakes up quick now from idle. I will reset the L side to one turn out and try that.

 

[JaysSD114]

Tried 1 turn out on the L side and it bogs for just a quick second. Went to 1 1/4 turns out and the bog goes away. I think it likes that little extra of fuel. Smells a little richer also.

 

[scottr]

If you let it idle for a minute and pick it up does the idle change ?

 

[JaysSD114]

I let it idle on the floor for a few minutes. Picked it up and it responds instantly with the L out 1 1/4 turns. I tried it at 1 turn out and it bogs at the first hit of the throttle. Idle has stayed pretty consistent. I let it idle for prob 3min and it just purs right along.

 

[scottr]

Ok . If there was a change in rpm as you were raising the saw from the floor it would indicate that the L is rich .

 

[Little Al]

Turn the"L"screw in tiny amounts until it hesitates on throttle opening then out till the throttle pick up is clean at the screw in the most ,"H" setting is 4 stroking at WOT running clear of wood revs should clean up & 2 stroke as the saw starts to cut, if in doubt run the "H" a tiny bit out (rich)

 

[JaysSD114]

Al, that's pretty much how I set the L side. I was at 1 1/2 turns out but after messing with it again I'm about 1 1/4 or a tad more.