Question about Poulan PP4218AV 18" Chain Saw

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Used wrong gas can and ran saw on pure gasoline.

The saw ran and then conked out and won't re-start.

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If your saw didnt lock up ,or overheat it should run again, take out spark plug, with switch off, put your thumb over the hole and check for compression when you pull the cord. if it pops your finger off the hole you probably didnt cook the rings, or burnt the piston, the raw gas may have washed the cylinder down enough to temporarily lose compression (lack of oil seal). refill tank with proper gas/oil mix, squirt a small amount of oil in cylinder and pull it thru a few times , this should seal up the rings again , put in a new sparkplug, and try normal cold start, you may have to clean the plug a couple times before it runs. if it runs but lacks power my guess is the rings got to hot and lost their temper or scored the cylinder. dont use alcohol blended gas this will ruin fuel lines , they soften up and fall apart etc. premium regular if you can get it, check the fuel line to be safe for pinholes as they will **** air and not start if you get alcohol blended gas. anyway good luck. geo_1

Posted on Dec 08, 2008


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Posted on Jan 02, 2017


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I lost the owners manual and wondered if i had to add oil to the gasoline

Yes, you do have to add oil to the gasoline. All two-cycle engines must have oil added to the Gasoline, unless they have an oil injector, and chainsaws do not have an oil injector.

While you do not mention the make of your chainsaw, most modern saws use a fifty to one mix.
Older ones typically used a 25 to one mix, and very old ones used a 16 to 1 mix.
A thirty to one mix will work just fine, since you do not have a manual for your saw, and therefore do not know what the particular manufacturer recommends. You may be able to find out
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My chain saw is kicking out alot of smoke, making it quite sluggish, of recent it takes a little longer to start. Having left it a couple of mins. to warm up, it is now conking out when i increase the...

One thing to check is your oil/gasoline mixture. If the gasoline that you used is alcohol enhanced then if you let it sit for a period of time the alcohol evaporates and the mixture changes to more oil than gasoline mixture which makes the exhaust smoke a lot and possibly coats the plug more. Also, regular gasoline that sits in the tank for a long period of time does the same thing.

If your mixture is not at the recommended level,16/1, 40/1 or 60/1 whatever, then the oil will foul the exhaust ports on the saw and back pressure will cause the saw hard to start.

Recommended: take the muffler off of the machine and clean the exhaust ports as much as possible, scraping the built up carbon off. clean the gas tank out removing all of the mixture. Refill the tank with fresh correct mixture. Remove the spark plug and clean or replace being sure that the plug is gapped correctly.

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When the engine get warm and die(I suppose)check the spark at the sparkplug.You can let the saw run until it ran out of gas and you will not distroy the engine.Change the sparkplug.

best regards savumihai71

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