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Typical for any carburetor is 1 1/4 to 1 1/2 turns (out). These are just rough settings to get the saw running. Remove chain, turn idle throttle speed screw in to increase idle rpms so its less likely to stall. Follow mfg instructions for starting.
Once running, adjust low speed mix and allow a couple minutes to warm. Then re-adjust low speed and lower idle rpms by turning out idle throttle speed screw. Then with throttle wide open adjust high speed mix. If saw hesitates from idle to full throttle, open low speed mix 1/8 turn and readjust high speed mix.
If saw doesn't fire in 3 or 4 pulls remove plug. If plug is dry no fuel, if wet either no spark or idle mix to rich (or fuel metering may be fouled).
Most poulan chain saw have three screws idle, high, and low.. if you look air filter cover you will usually see three holes and the high and low will usually have plastic covers on it.. adjust the low 1/4 of a turn and the idle screw in about 1/4 or until the idle picks up... On the plastic cover where the three holes are you will see H which is High L which is Low and I which is Idle... Let me know if you have any problems.. thanks
If it is a new chain saw, then what it is, is that they set the carb to run a higher idol until the motor breaks in once this happens you have to change the low idle on the chain saw to help balance everything out. Do it in short 1/4 turns until you get it just right. Your owners manual will show you which one is high and which one is low. Please rate
no carb ajustment is done with a flat head screwdriver, first i would remove the card, disassemble it and blast it with compressed air because its probably just clogged up with varnish. to ajust the high low and idle screws bottom both out ( turn in all the way) then unscrew each one turn. from there start the saw and loosen in 1/4 turn at a time until it runs well
Turn up your low speed jet about 1/4 turn. You have 2 holes in the side, one says slow or low and the other says high,, or fast, turn the slow jet in 1/4 or out if that doesn't work, then try it, you will find the right spot. Hope this helps.
the vinyl primer button on your carb shoots fuel into the crankshaft space. when you pull the rewind air and fuel in the crankshaft area is sucked into the combustion chamber. when the magneto reaches almost top dead center, the high voltage fires the spark plug. if there is an air leak in the gasket that surrounds the crankshaft, the air/fuel mixture will be way off. flooding will occur and the plug will get saturated. remove the whole back of your engine and clean the mating surfaces. now use high temp permatex and run a bead all around the gasket surface. tighten all the bolts - screws. push the primer button twice and try starting the engine.
You need to pretension it. Remove the pull handle, rotate the spool about 2 revolutions against the spring, rethread the cord and reinstall the handle.
Lou
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