Primer button will not fill up
The primer bulb pulls fuel from the carb, into the bulb, and pushes it back to the tank. If the bulb does not fill there will be a number of reasons why, firstly if the saw is new, there will be oil in the carb from the starting prosess at the factory, the saw will start without fuel in the bulb, but will take many more pulls to get it going, once the saw starts and runs for a few minutes the oil in the carb will clear, and the bulb will fill normally when depressed, if your arm is not up to cranking the engine many times, remove the top cover, remove the air filter, dribble some fresh fuel/oil mix down the filter elbow, the saw will start after a few pulls. If the saw is a used machine the problem may well be a blocked fuel filter in the tank.
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