got my 4218 about 8 yrs ago. cut at least 20 rick a year with it. til this year. it quit for some reason. carb kit didn't help. fixing to replace head and piston. so this is very helpful, thanks.
Compression Test first. Simple test: Hold the Starter Rope with one hand under the saw. Lower the hand holding the saw. It should Hang or slowly drop as the engine slowly cycles through the Compression cycle. If it just drops - compression is severely low. *If compression checks out, confirm good Spark. We often forget about the Spark Plug which can eventually cause the Coil to fail. Stick with the Factory .025 Gap. people think widening helps on Hot restarts. This is very bad for coils. They have to push more charge to bridge the wider gap, wearing out the internal components of the coil. Before tearing down the saw, know the reason for the repair. Confiirn whether the Spark plug is getting wet or staying dry - this can confirm your Carb Rebuild is allowing fuel flow.
I cut 8/10 cords off misquite wood every year and all I use is two poulan pro 4218 saws and 40:1 mix with corn free gas and red armor oil Keep them clean and a sharp chain That’s the key to running any saw I’m retired diesel mechanic and I do all my repair work plus run a small engine shop
Excellent. I am rebuilding one of these with the same exact issue. One thing, there was a metal pin that fell out and I do not know where it came from.
If it is a very thin pin, short, about the width of the Rod, you may have lost it from the Piston Bearing. I believe the Bearing cage is Pressed in on these Rod assemblies.
Walk through appreciated. I'm preparing to restore a 4018 Wild Thing(rare Black/Purple) that has very low compression. Looks like in chassis will be the simplest way to get it done and I really don't need all the extras in a Full kit. Bottom end seems solid and I just installed a new Carburetor(thinking it was the starting issue)
Awesome! Hopefully i can do this without removing the crank like you did! Terrific instruction. Thank you!
People give poulan pro bad name but i had great success i cut 8 chord a year and cut 64 chord with my 4218a and still going strong. Cheers bud
Thanks for the info - it's definitely been a good saw for me, as long as you don't push it too hard haha.
got my 4218 about 8 yrs ago. cut at least 20 rick a year with it. til this year. it quit for some reason. carb kit didn't help. fixing to replace head and piston. so this is very helpful, thanks.
Compression Test first.
Simple test:
Hold the Starter Rope with one hand under the saw. Lower the hand holding the saw. It should Hang or slowly drop as the engine slowly cycles through the Compression cycle.
If it just drops - compression is severely low.
*If compression checks out, confirm good Spark. We often forget about the Spark Plug which can eventually cause the Coil to fail.
Stick with the Factory .025 Gap. people think widening helps on Hot restarts. This is very bad for coils. They have to push more charge to bridge the wider gap, wearing out the internal components of the coil.
Before tearing down the saw, know the reason for the repair.
Confiirn whether the Spark plug is getting wet or staying dry - this can confirm your Carb Rebuild is allowing fuel flow.
I dug one out of dumpster and I like to never got out, lolol 72 years old 😊
Bad piston and ordered this kit and seals
I cut 8/10 cords off misquite wood every year and all I use is two poulan pro 4218 saws and 40:1 mix with corn free gas and red armor oil
Keep them clean and a sharp chain
That’s the key to running any saw
I’m retired diesel mechanic and I do all my repair work plus run a small engine shop
Excellent. I am rebuilding one of these with the same exact issue. One thing, there was a metal pin that fell out and I do not know where it came from.
I hope it was helpful! Sorry I don't know where that pin came from. could it be from the chain brake assembly or choke/throttle linkage?
If it is a very thin pin, short, about the width of the Rod, you may have lost it from the Piston Bearing.
I believe the Bearing cage is Pressed in on these Rod assemblies.
Walk through appreciated.
I'm preparing to restore a 4018 Wild Thing(rare Black/Purple) that has very low compression. Looks like in chassis will be the simplest way to get it done and I really don't need all the extras in a Full kit.
Bottom end seems solid and I just installed a new Carburetor(thinking it was the starting issue)
Poulan low comp thing. Does anyone though of using a stihl two-ring piston instead of this one-ring joke?
Mantap bro 👍👍👍
Great video. But you keep sticking your your head in front of the camera , WHY!!!