How to Test a Small Engine for Spark
If your small engine isn't starting, you'll need to diagnose many issues including the spark plug. This video walks you through the steps of how to test for a spark using a spark tester.
Quick Fix: How to Clean a Spark Arrestor Screen on a Small 2-Cycle Engine
This repair article will instruct you how to repair a dirty or damaged spark arrestor on your small engine.
How to Replace the Drive Shaft on a String Trimmer
Learn how to properly replace the drive shaft on your string trimmer in less than 30 minutes.
Quick Fix: How to Replace the Spark Plug in a Small Engine
This article will help you replace the spark plug on a small engine which will help get your gas powered equipment up and running again.
Discussion for the Poulan Pro PPB200 Gas Trimmer
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Question: How Does This Come Off
Is it a screw on or is there a shear pin ? Anyone know the best way to remove it ????
Reply: How Does This Come Off
We do have an article and video on how to remove this style of clutch from a chainsaw. Although it not the same tool, removal of the clutch is done the same. Here is the link to it.
How to Remove the Clutch Sprocket on a Chainsaw
Hope this helps,
Reply: How Does This Come Off
[QUOTE=Sonny6120;67479]Is it a screw on or is there a shear pin ? Anyone know the best way to remove it ????
Hello, Sonny 6120,
I have a PPB 250E Poulan weed eater with a centrifugal clutch just like the one in the picture. You will notice that the spring keeper on top of it tells what direction to unthread it. Like with the chainsaw demo use a hammer and a steel driver of some kind to tap it loose in the coiunter clockwise direction. Were you able to get the clutch housing removed. That's the cup-like part that engages the clutch to drive the weed-eater shaft. You may need a flashlight to see down inside the cup's shaft. In mine there was a screw that required a small flat-bladed screwdriver to remove it.
Question: Poulan WeedEater 31WG Disassemb...
Starter Dogs won't release the starter string pulley. The string could not be pulled. Ordered new pulley, starter coil, new gasline since the 31WG Trimmer requires almost full disassembly to get at string pulley. After researching the task taking this string trimmer apart, I've read it may be the Starter Dogs' Springs. In addition after viewing some pulley replacement and clutch removal videos, the question became, Can i use either Spanner Wrench or Poulan part#530031112 to remove clutch assembly? Careful use of a lock wrench is prevented by a plastic collar type guard that is part of the one piece front end housing limiting access to clutch assembly, on this model.
The Poulan WeedEater 31WG is not maintenance or repair friendly because it is entirely enclosed in 3 main plastic housing parts. So this repair turned out to be a complete rebuild project, with perhaps some access modification because this machine has served me well for 6-7 yrs.
Removed Spark plug wire grommet to pull boot through bottom of front housing finally separating that front cover exposing clutch assembly and fly wheel. The string pulley is on top of the starter coil, mounted inside the head of front housing.
Removed Clutch Assembly easily with a Grip Wrench that till now was useless other than to open jars with twist caps! lol Upon examining clutch assembly the following questions came up:
1) The washer sandwiched between front of plastic housing and clutch assembly part #530094189 has 4 small silver triangular shapes on washer surface, that may become notched
with more wear from clutch expanding and contracting I'm assuming. Should I replace the washer?
2) Clutch Assembly has a narrow silver band like surface on either side of metal pads. Is this normal wear that does not require replacement? When do these parts require replacement?
3) Can the starter dog springs be replaced on Flywheel #53005524?
4) Why did starter dogs chip wings on Pulley Shaft?
5) How do I remove the Flywheel to examine its collar and underside?
Starter pulley is attached inside frnt housing.
Using these diagrams:
& Taking photos to put parts back how they belong. Really don't know all the parts i will need. Help! Anyone done this before with same model trimmer?
Reply: Poulan WeedEater 31WG Disassemb...
1. The washer will be fine
2. Clean clutch "pads" and clutch housing with Brake Cleaner. They rarely wear completely out. Band is normal.
3.Starter Dog Springs are part of the flywheel assembly and have no part no.
4. Maybe because of broken or loose spring ends.
5. Tap it lightly on smooth non-magnet area until it vibrates free. Flywheel has integral key that mates with slot in crank.
Question: Gas Trimmer
My gas trimmer seems to run just fine until I go to cutting weeds or grass, it then bogs down like it has no power. I have cleaned the muffler screen, rebuilt carb, and set carb high and low end needle seats. When I lift the trimmer by the starting cord all my line will come out (w/o trying to start it). Is it possible I have low compression? I have no way of checking other than how I just described.
link removed have a poulan pro ppb200 that bogs down when I go to cut anything.I have rebuilt the carberator,replaced fuel lines and filter,have checked the muffler,put in new spark plug.Also adjusted high and low end needle settings.The weedeater sounds great but as I stated it loses power when I go to use it to cut anything.the only thing I can think of is low compression in which the only way I have been able to check it is by a method I read about on another web site which stated that if you cannot lift up the trimmer by the pull cord w/o the line comimg out that you have low compression.Unfortunatly all of my cord comes out when trying to lift the trimmer in this manner.I do not know if this is a viable way of checking compression or not.I have tried everything I know of to no avail and am now relying on any help I may get from forum readers.Thank You
When you said you checked the muffler did you pull the muffler off and inspect the exhaust port?
What does the piston look like when you look at it through the exhaust port? Bright and shinney? Dull? Brown? Do you see scratchs or scoring? Do the piston rings spring back if you push on them with a pick?
I have some new units that when lifted by the recoil rope the rope will slowly pull all the way out.
If the piston looks dull, brown, scratch, or scored then chances are compression is not what it is supposed to be.