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Pp4218 saw surges when at high throttle. acta like iti is about to run out of gas but tank is full

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Try Adjusting The High Speed Jet.You Can Do This By Turning It IN Or Out Until IT Smooths Out.If That Don,t Work The Carb Needs Too Be Rebuilt.

Posted on Nov 15, 2010

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1 Answer

Model pp4218 throttle stuck open

I assume you are referring to a pullen pro chain saw. If so, the cable that links from the trigger to the carburetor is stuck. This can happen due to trash and dirt stuck in the trigger area, or the carburetor needs cleaning. Or the cable or wire to the carburetor is bent. See if the connection between the trigger and carb moves freely when not running.

May 02, 2016 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

2 Answers

Rebuilt carb & replaced fuel lines-fuel filter,saw started.ran last nite now today it wont start

If you put the pump on the carb and then the gasket, then cover, you assembled it wrong and the pump is letting gas just run out of the tank when the engine is off.

Jan 21, 2014 | Poulan Garden

1 Answer

The saw starts but not easy runs for about 5

Either the throttle is stuck wide open, or there is a large air leak behind the carburetor to cylinder connection. Make sure the carburetor is securely fastened. If it has a flexible connection to the engine, remove the connection and inspect it for tears or holes. Watch the throttle arm on the carburetor which should move from the idle speed screw to the full throttle limit casting/post when the trigger is pulled and released. If it hangs near full throttle, then remove the trigger mechanism (make notes of the parts positions) and clean out any dirt/sawdust. Check the air cleaner and muffler for plugging. Check the H needle adjustment after repairs by running the engine at full speed after warm up--the engine should 4-stroke unloaded, but immediately 2-stroke when cutting. Check the condition of all of the fuel lines including the line to the filter in the tank looking for decay or other damage. Use original rubber lines for replacement, not plastic substitute. Hope some of this helps!

Jun 29, 2010 | Electrolux Poulan Pro Gas Chain Saw...

1 Answer

Bike surges at cruseing speed,like it is losing gas,but at full throttle it pulls fine runs good.

It sounds as though the slow speed jets are partially stopped up. When you give it more throttle the high speed jets take over. Try using a good carb cleaner in it for a few tanks. If that doesn't work than you may have to go through the carbs.

Ride safely, Ed

Apr 09, 2010 | 1997 Honda VT 1100 C Shadow Spirit

1 Answer

Runs about two minutes and dies with no spark.

Change the plug and try it. Fixed - happy chainsaw guy.

With a small amount of fuel in the tank, disconnect the kill switch at the coil and try it. Fixed - inspect and repair kill switch wiring, if good replace switch. Re-test. If fixed - happy chainsaw guy.
You can do this without a bar and chin if you like. There will need to be oil in the reservoir and do not go to full throttle without them. How ever you do it let it idle until it starves.
The dash number of your serial number is the type.

Find your coil here:
Poulan PP4218 Type 2
"Engine Assembly" detail, item 4

There are many PP4218s (Type 1, AV, AV Type 1 & 2, etc. All can be found at the Poulan.Com link.). They probably all use the same coil but please touch base with OrderTree or where ever you place your order to ensure we have the correct coil. They will ask questions about your saw, please have it within easy reach.

An index or business card makes a very good gap tool. Place a business or index card between the fly wheel and coil, rotate until the magnetic attraction pulls everything tight together. Tighten the coil screws, rotate the flywheel until the attraction eases and remove the card. Ensure nothing contacts when flywheel is rotated.

Just because I am a picky old turd and you might need it. It is a very good test:
Ignition Coil Test by
You may need to use a jumper wire between the threaded part of the plug and the cooling fins. You do not have to bend up the electrode.

If I can be of any more help you can reply below. I hope you found this very helpful.

Jan 29, 2010 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

Wont run hard start, run for five min or less then wont start

Many chainsaws have the fuel tank mounted very close to the engine cylinder. In the process of filling the tank over and over a lot of mixed gas is spilled and some of it runs down on the cylinder head. Being mixed gas and having oil in it, it leaves an oily residue. This oil will seem to collect a massive amount of sawdust over time. The sawdust coating the cylinder causes it not to cool down really well and the increased heat can cause the fuel in the tank to boil if it's bad enough. If the vent in the fuel cap is plugged and the gas in the tank gets hot it tends to pressurize the gas tank. This can cause the saw to flood out or load up.

Change the gas cap or clean out the vent filter. If you can get to the cylinder clean all excess oily sawdust from the cooling fins.
If you get the saw running your probably should readjust the mixture settings.

You need to set the mixtures for the carburetor. You will find a Low and High adjustment screw. At idle turn the screw in or clockwise until the rps starts to decrease. Then start turning it out till you hit max idle rpms. Turn screw back in a quarter to half turn and it should be idling smoothly. Be careful here and get someone to hold saw if necessary but hold in throttle to full speed and do the same with high adjustment screw. turn it in till rpm starts to drop then back it out until you get to max rpm and it won't go any higher then turn it back in a half a turn.

Sep 12, 2009 | Poulan Pro Chain Saw 46cc 20"

1 Answer

I don't know correct gas/oil mix for the Poulan PP4218 chainsaw?

The PP4218 Poulan Chainsaw operates on a 40:1 gas.oil ratio.

Please rate this solution on FixYa!

Apr 01, 2009 | Poulan PP4218AV 18" Chain Saw

7 Answers

Chainsaw kills when I press the throttle

My 372 xp did that and when I talked to the repair shop they even showed me. There is a fiberglass gasket that is used to mount the carburetor to the engine. I have no idea on how this happens, but I saw it with my own eyes. The gasket had actually folded over. They replaced it with a rubber one and have had no problem since. The saw was hard to start, would run as long as I didn't try to cut anything and when I did it would open up and then die. I could be giving wrong information, but that sounds exactly like the problem I was having.

Oct 08, 2008 | Husqvarna Chain Saw 20" Bar

1 Answer

Poulon Wildthing 18" Gas Chain Saw

Some Poulans vent thru a fuel line going from the tank to the carburetor. Some vent thru the cap but eventually the duck bill valve starts leaking fuel. Then I suspect some people change that cap to one without a vent, which causes the problem you are describing.

Sep 11, 2008 | Poulan Wild Thing 2375 18" Gas Chain Saw...

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