Chain saw has only been used for about 10 hours before it died. chain saw worked on saturday...new unleaded gas was used and used the correct gas/oil mix. Sunday the saw took a while to start, used same gas/oil mix from saturday. Was able to start the saw a few times but the saw would only run for a few minutes and die. Eventually it did not start at all.
On saturday i used the saw several times until the gas ran out and refilled and restarted. Just talked to someone who said you cannot let the saw run until it ran out of gas or you'll destroy the engine. I did see sparks on either saturday or sunday (I don't recall which day). I kept the saw full of chain oil.
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On thecarburetorgottwoscrewsto adjust thecarburetor.The first isto adjust thesawwhenworkingat highspeeds.Another iswhen runningat lowrevs.It is best toeitherput backfor about 1.5cycleofthe maximum ofthe end of therotationof thescrews.If thenthe sawstarts, thenyou canadjust itfineat higherrevs(H),thenat low(L).Havecan beminimumscrewthatstops thechain.
When it dies, try removing the fuel cap for a moment, then try restart. If successful, the tank vent is likely plugged (look under the left case cover). It should be a bronze plug set into the tank surface. If no help, remove the spark plug, and test for blue,snappy spark. If nothing happens, try a new plug first. If still nothing, remove the stop switch grounding wire at the ignition module and retest. If still nothing, the module is dying with heat--replace it using a thin business card for a gap gauge. Turn the flywheel magnets under the module poles and allow the new module to stick to the magnets, then tighten the screws. Rotate the flywheel to release the card, then turn the flywheel one complete revolution to make sure the module gap doesn't close up. Hope this helps!
When it dies, remove the spark plug and make sure that it continues to make blue sparks. If nothing, try a new plug. If still nothing, then the ignition module is likely dying from the heat--replace it. If sparks continue, then try spraying starting fluid into the plug hole, replace the plug, and try to start. If it pops once or twice, then suspect a fuel delivery problem. Try loosening the fuel cap for a moment, then try to start. If it runs again, suspect a plugged fuel tank air vent. Try cleaning the engine area with compressed air, particularly behind the starter mechanism. Hope this helps!