20 Most Recent Poulan PP4218AV 18" Chain Saw Questions & Answers

Mine did the same thing. Take off the cylinder cover as described above. Take off the screw holding the on/off switch. <br /> Bend the bottom of the silver metal shutoff band down where it rides against the back of the switch. Bend until switch turns on and off smoothly.<!-- from fixya rte -->

I don't think your problem is vapor lock. Your machine is just starving for fuel. Your problem can be solved by removing and cleaning your carburetor, changing the gaskets, changing filter , and checking for bad fuel lines. Your problem is very common. GOOD LUCK FRIEND.

Check coil pic up or the electrical pick up in the pull string housing. Remove that and u will see the fly wheel next to that is the electrical pick up .look at fly wheel make sure magnets are clean surface ,they are in the fly wheel itself.after that remove coil and clean surface that faces fly wheel. Using a match book cover place it between fly wheel and coil ,make sure it moves but not falls out snug ,tighten coil screws and remove match book cover. If it dose it again re place coil look for small engine shop in your area and the can help get u a new one .weak spark means coil,sparkplug

Trun over saw look at BAC handle small screw should b there

The trigger, lockout or trigger/lockout spring has failed of may have debris stuck in handle. remove handle cover and inspect. If parts broken follow this link for parts breakdown.

http://www.ordertree.com/modelinfo/PWE/PP4218AV/75.PP4218AV.1.7.1.html

are you using a chain bar oil as this is a lot thicker than normal engine oil

did you fill it up with the ratio of 25-1 of fuel and oil?
if not then the carb will be block and will need cleaning out as it will be full of oil

hope this helps

John

Hi,

On your label you should see the number 2150 plus a type number. There might be another part to the name, such as Predator or PR. You need the entire model to be able to find parts.

Here is the customer service number should you label not be readable or you still can't find it: 1.800.554.6723
or email at www.poulan.com customer service option.

If you find the model and need parts, here is a web address for Milaca Lawn and Garden:http://www.milacalawn.com/parts.asp
They provide parts schematics and fast delivery.

Hope this helps. If it does, I'd appreciate a 4 thumbs up. Thanks,

Handie Andie

Sounds loike its running lean, start by replacing the fuel filter on the end of the pipe in the fuel tank, if this does not help you need to richen up the mixture screws, unfortunayly you need a special toll to adjust the screws ( they have a spline, not a screwdriver slot ) the tool is part no. 530035560, once you have the tool unscrew the carb screws 1/2 turn on each and try again.

Before you try to start it, push the primer bubble on the side 3 or 4 times, then pull the choke all the way out. On poulans they can be tricky. When pulling the choke button out, make sure it does not go back in. After you pull the crank rope and you hear it "hit" push the choke back in and pull the crank rope again. It should start after that. If it still won't start, check for a faulty spark plug.

Sounds like the ignition module. Have you tried replacing that?

Here is a Link to a couple of my Tips. They should solve your problems:
www.fixya.com/support/r6081405-cleaning_small_engie_carburetor

I don't know anything about outboard motors, so I can't answer the reed valve question. There is a needle valve on the diaphragm side of the carburetor though. Maybe these two parts perform that operation.

Good Luck!

Jim

Remove the chain bar and look just below the bolts holding it in place. You'll see a small hole where the chain bar oil pump pushes out oil. Make sure this hole is clear then run the saw without the bar on.
Be CAREFUL of fingers!
You should see oil coming out of that hole. If not, you may need more serious work done with the saw (chain bar pump replacement).

Check the fuel filter, air cleaner, and muffler for plugging. Check the fuel lines for condition and replace with original rubber lines, not plastic if needed. Check the carburetor fasteners for tightness including those holding the carburetor to the cylinder. If the two jet screws have not been adjusted, they should be ok. There is a chance that the diaphragm in the lower carburetor chamber is hard, cracked, or has a hole. Also, check the fuel metering valve that the diaphragm controls for tip damage or dirt accumulations. Go to http://www.drystacked.com for a 12 page article on Walbro carburetor theory and troubleshooting which applies to nearly every brand of carburetor used in saws. Hope this helps!