Question about Poulan Pro 42CC 2 Cycle Chainsaw, 18"

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I've replaced the ignition module on my Poulan Pro 4218AVHD but it's not starting....does anyone know what the gap size is for this part? I checked the spark plug and it's getting spark but I don't know if it's getting enough.

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The spark should be blue in color not orange or white. A bluish ornage is ok. The easiest was to set the gap is to tear off the front and back of a match book cover tear it in half and place the 2 pieces between the module and the flywheel losen the module and let it slide against the match book cover. Tighten the mounting screws and then turn the flywheel to remove the match book cover. <- (Been doing this for 40 years!)

I suspect your problem may be fuel / carb related vs ignition.

However.... a bad spark plug will spark when removed and you have grounded the electrode end to the engine but will NOT work when you install it. Make sure you change the plug. (FYI I have seen new Champion mini plugs fail right out of the box.) I have had as many as 3 in a single NEW box of plugs fail.

Just for grins try adding a splash of gas into the spark plug hole or carb throat before you try and start it. If you get a momentary start you have carb / fuel supply problems.

If you discover you have carb / fuel problems just repsond and we can proceed with getting you going again. I will help you.

Thanks for Choosing FixYa
Kelly

Posted on Oct 03, 2010

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