20 Most Recent Poulan Wild Thing 18" 40cc Gas Chainsaw - P4018WT Questions & Answers

You should have hurt anything, just remove and reinstall properly. Kind of hard to do this, but I guess its possible. If the new one is damaged get a new one. All it does is retain a small amount of fuel and always you to prime the fuel system

A fuel line should be long enough to teach from where it attaches to the carberator to the fuel tank but not quite touching the bottom - however the line in the tank end should have a small filter on it. You should be able to buy a replacement line for your specific saw.

For two cycle and four cycle engines is 50:1.

replace diaphrams in carby. clean or replace filter in tank on end of fuel line Ensure fuel cap allows ventilation for running.

http://www.jackssmallengines.com/sprockets_poulan.cfmAccording to this list of sprockets, the Wild Thing has a 0.3937 drive shaft and they do list 0.325 sprockets with that diameter shaft, but not for the Wild Thing. Doesn't mean they won't fit but you can call them and ask if there is any other reason it won't work. May be an easy cross. Good luck!

first check for spark then check ignition switch and coil and that's a good place to start

they have a tool for that crappy little hole you have to get to adjust the idle screws. Or u can use a deep socket same size that work's also

Mine did the same thing but i replaced ignition switch and gap my plug by a match head thickness. It doesn't matter what side of flywheel

Try this link with your exact model # and also turn on "illustrated parts list"http://www.poulan.com/node7925.aspx

Poulan has had a notorious carb issue over the past couple of years. Products roll off the line needing a carb adjustment right out of the box. One adjustment is covered under the warranty at a service dealer near you. Look up your closest dealer at poulan.com. This is not something consumer serviceable as it requires a special tool.

i WOULD SAY IT IS RUNNING TOO LEAN ON THE MIXTURE SCREWS, THEY ARE SET UP IN THE FACTORY FOR THE BEST EMMISSIONS, NOT THE BEST RUNNING, THIS USUALLY MEANS THEY ARE SET VERY LEAN, UNFORTUNATLEY THERE IS A SPECIAL TOOL TO ADJUST THE CARB, AND THE MAXIMUM REVS SHOPULD BE SET UP WITH A TACHOMETER, IF IT IS NEW I WOULD TAKE IT BACK TO THE SELLER AND GET THEM TO RE ADJUST IT, IF THEY RUNS TO WEAK FOR TOO LONG IT WILL SEIZE, AND THEN THEY WILL BLAME THE OPERATOR.

It sounds like you have low compression in the engine. I would check the compression it should be 100 psi.

Problems with engines not starting usually come down to either an electrical problem and no spark at the plug, or lack of fuel.
Remove the spark plug and place the body of the plug against the engine.Check there is a spark when the engine is cranked. If no spark check there isnt a problem with the cut off switch.
The fuel lines may have become airlocked.This can happen if the tank is run dry. If the saw has a primer bulb, alternatively press it several times and then try to pull start the engine with choke on. Repeat this several times. The primer bulb should feel spongy and fill with fuel.
If you're up to it, you can dismantle the carburettor and clean any dirt from valves.The carburettors on chainsaws, hedge cutters etc are very fiddly with delicate diaphragms, valves and springs so you have to be careful to avoid damage or loosing parts.
Ensure air filter is clean. Foam elements can be washed with hot water and detergent, squeezed dry in a cloth and re-oiled with a teaspoon of engine oil spread through the foam. Paper elements can be cleaned with compressed air blown from the inside of the filter but ideally should be replaced.
Check fuel lines aren't kinked or blocked restricting fuel flow.
Ensure fuel filter isn't dirty. This is probably located at the end of the fuel line in the tank.
Check the throttle cable is actuating the throttle plate in the carburettor.
Check whether there is a vent on the tank or on fuel cap. There is usually a valve on this to allow air into tank to replace fuel as it leaves for the carburettor. Ensure this isn't blocked.

Hope this helps !