There may be a fuel delivery problem. Check the fuel filter on the free end of a hose in fuel tank (manufacturer recommends an annual replacement). Check all fuel delivery lines especially at fittings and bends for cracks and holes. If those are good then the likely cause is internal parts of the carburetor are dirty or have failed. HTH
Lou
Testimonial: "Thanks very helpfull,It runs realy good at3/4ccw"
Was it stored with fuel mix on board? If yes it will take a while to remove it from all passages and hoses.
Fuel/Oil MixtureUse a quality 2 cycle oil and mix it to the OIL supplier's recommended ratio. Today I use Stihl 2 cycle oil mixed @ 50:1 in a Pioneer that I purchased new in 1980. There are no gouges or scratches on the piston or cylinder and I have no carbon build up on the piston top. The manual (on stone tablets) recommends 24:1. Over the years the mixture has leaned from 24:1 (Saw Recommendation) to 28:1 (Lawn boy mower recommendation) to 32:1 (Oil provider 8oz/2gal - used for many years) and finally the last 5 (±) years 50:1 (Stihl 2.6oz/1gal)
Any fuel containing ethanol is not good with chainsaws. Mix what you expect to use within a few months. Anything over 3 months old use up in a 4 cycle engine.
Tune it until it idles and cuts properly. 1.5 CCW is a good starting point. Tune for performance. I CCW is as lean as I’d go. Clean air filter, fresh mix, fully warmed up, bar mounted and properly tensioned. HTH
Lou
It runs best just before it ceases (CW = lean). The more CCW the more oil/fuel.
3/4 CCW is quite lean. I'd run it at 50:1 with Stihl or Husqvarna 2 cycle engine oil. The absolute richest mixture I'd use is 40:1. The more oil in the mix the more smoke.
These folks have been in chainsaw business forever, Please take a few minutes and read it all.
http://www.madsens1.com/saw%20fuelmix.ht...
My first chainsaw was a Skill 16" (1979±), I only kept it long enough to run 3 tanks of mix through it, then Pioneer FarmSaw. The manual on my Pioneer says 24:1; I use 50:1. DO NOT USE generic 2 cycle oil. Read the Madsens post.
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Got it started by cleaning carburator but it smokes quitea bit played with 2 screws on side going in all the way and backing out one and half turn still smokes
I used 35/1 mixture it ran good,the cap calls for 16/1 when i put that in it stoped and icant get it started again . it is old saw I dont use as much what mixture should i use. i used 2 cycle oil to mix it. Thanks in advance for your great help .
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