Craftsman 1.9/Poulan XX

[70v]

Hello everyone,

I have found a recent interest in chainsaws after getting a Craftsman 1.9 from my grandfather. I was told it had been sitting for roughly 25 years and by the state of the fuel in the bottom of the tank I would have to believe that. Long story short I blew the whole thing apart, split the case, cleaned all the solidified fuel, rebuilt carburetor and reassembled. After some adjusting I have the saw running however I cannot for the life of me figure out how to make it idle properly. I believe the most forward screw to be the high adjust and the furthest rear screw idle adjustment. The saw starts first pull and idle for about 2 seconds before stalling. It runs very well on throttle and has no problem going through a 10" green poplar. Just wondering if anyone has any tips for getting this cool little machine to idle.

Thanks

 

[s sidewall]

Did you check the crankshaft seal, maybe leaking.

Steve from my moto g(7) play using Tapatalk

 

[RED-85-Z51]

3 needles. 2 together. 1 away.

The needle closest to the saw body is low mixture, the one next to it is high mixture. The one away is base idle speed

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[Modifiedmark]

3 needles. 2 together. 1 away.

The needle closest to the saw body is low mixture, the one next to it is high mixture. The one away is base idle speed

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Bad advice. Those saws have a fixed High speed jet and only have 2 needles. The front one is the idle mixture and the rear is the idle speed.

 

[Modifiedmark]

Hello everyone,

I have found a recent interest in chainsaws after getting a Craftsman 1.9 from my grandfather. I was told it had been sitting for roughly 25 years and by the state of the fuel in the bottom of the tank I would have to believe that. Long story short I blew the whole thing apart, split the case, cleaned all the solidified fuel, rebuilt carburetor and reassembled. After some adjusting I have the saw running however I cannot for the life of me figure out how to make it idle properly. I believe the most forward screw to be the high adjust and the furthest rear screw idle adjustment. The saw starts first pull and idle for about 2 seconds before stalling. It runs very well on throttle and has no problem going through a 10" green poplar. Just wondering if anyone has any tips for getting this cool little machine to idle.

Thanks

You are right on the screws. It is hard to diagnose over the internet. The mixture screw is adjusted in the normal manner and useally is not a problem on those. "IF" the saw was not put together right or the carb not rebuilt right it will never idle right.

Did you get the right line coming out of the crankcase and into the oil tank? Did you get the right checkvalve on the end of that line inside the oil tank? If this is not correct it will cause a severe air leak and the saw will not idle and you will probably burn it up running it. Does it oil the bar? Did you put new crankseals in it?

 

[RED-85-Z51]

Bad advice. Those saws have a fixed High speed jet and only have 2 needles. The front one is the idle mixture and the rear is the idle speed.

Interesting...the one i had had 3 needles. But the throttle linkage was a bit wonky maybe it wasnt the stock carb.

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[70v]

You are right on the screws. It is hard to diagnose over the internet. The mixture screw is adjusted in the normal manner and useally is not a problem on those. "IF" the saw was not put together right or the carb not rebuilt right it will never idle right.

Did you get the right line coming out of the crankcase and into the oil tank? Did you get the right checkvalve on the end of that line inside the oil tank? If this is not correct it will cause a severe air leak and the saw will not idle and you will probably burn it up running it. Does it oil the bar? Did you put new crankseals in it?

Thanks for the reply. I was reading about the oil but it was so far gone when I got the saw I have absolutely no idea where the line hooks in to get pressure from the crankcase. I reused the original valve that was in the oil tank. As for the auto Oiler it does oil the bar but it also leaks when the saw is just sitting.


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[Modifiedmark]

The oil line comes from the crankcase behind the ign and enters the tank from the lower side. This is the only picture I have showing it. You almost need to split the case to put that line in the crankcase and you should have done it at that time. If you send me a email address I will send you the service manual for your saw. It shows setting the carb and all about the oil system.

 

[Modifiedmark]

Interesting...the one i had had 3 needles. But the throttle linkage was a bit wonky maybe it wasnt the stock carb.

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If it had two needles plus the idle screw it was not the right carb.

 

[ray benson]

Hello everyone,

I have found a recent interest in chainsaws after getting a Craftsman 1.9 from my grandfather. I was told it had been sitting for roughly 25 years and by the state of the fuel in the bottom of the tank I would have to believe that. Long story short I blew the whole thing apart, split the case, cleaned all the solidified fuel, rebuilt carburetor and reassembled. After some adjusting I have the saw running however I cannot for the life of me figure out how to make it idle properly. I believe the most forward screw to be the high adjust and the furthest rear screw idle adjustment. The saw starts first pull and idle for about 2 seconds before stalling. It runs very well on throttle and has no problem going through a 10" green poplar. Just wondering if anyone has any tips for getting this cool little machine to idle.

Thanks

Poulan xx Service manual, page 7 for carb adjustment. Carb has 2 needles as Mark said.
https://www.mediafire.com/file/zg6yftor5z4jv24/20_service_manual.pdf/file

 

[70v]

Thank you very much guys. Got the oil line squared away. Already idles better than before. Will order some crank seals then she should be all ready to cut.


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[Piotr Pakuła]

I also have a crack in this oil line, I will temporarily use a connector to test the saw