Poulan

The recoil works fine but it is hard to turn engine over to start. Feels like too much compression, or on that order anyway.
Experienced gardeners share their insights in answering this question :
Remove the plug and try it. If its still hard to turn over. you may have cylinder damage.

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

There may be old or bad fuel in the carburetor float bowl. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and make the engine hard to start. If the carburetor is clogged, try cleaning it with carburetor cleaner.
Too much or too little air intake can negatively affect engine compression. In order to increase compression in your Poulan chain saw`s Kohler engine, manually adjust the air valves via the two rocker arms under the air valve cover.
A: The spark plug gap on all products is . 025-inch.
The carburetor might be clogged. A clogged carburetor is often caused by leaving fuel in the chainsaw for a long period of time. Over time, some of the ingredients in the fuel will evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and prevent the engine from starting.
A dirty carburetor, bad gasoline and low-quality two-stroke oil that creates deposits all contribute to chainsaw starting problems.
Shorter rods, revised shorter stroke crank = lower compression. Anything that makes the combustion chamber larger will lower the compression ratio if the pistons travel a shorter distance and do less “compressing”.
One of the easiest and most cost-effective methods of increasing engine compression may be done by simply replacing the existing head gaskets. Substituting steel shim gaskets, for example, in place of traditional composition-style units can raise the compression ratio slightly and reduce quench clearance by roughly .
But a good rule of thumb says that each cylinder in a mechanically sound engine should have compression of 130 psi or higher.
For most average-sized chainsaws a good compression reading should be around 110 PSI; for larger chainsaws, 160 PSI is better.
If a mower is hard to start, it may be the result of a dirty carburetor and/or a clogged air filter. Use a screwdriver to remove the carburetor and clean any dirt out of it with a rag. Clean the air filter or replace it if it`s disposable.
Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten. Dirty Air Filter: Clean or replace. Fuel Not Reaching the Engine: Tap the side of the carburetor to help the flow of gas. If this doesn`t work, you might need a new fuel filter.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Pull cord is difficult to pull after third pull becomes stuck but will turn if pull hard repeats every three to four pulls.
ANSWER : No response to clarification request.

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Troy Bilt Lawn Mower pull Cord broken
ANSWER : There should be four bolts holding the cover on that houses the pull cord assembly take the bolts out look inside you should see the rest of the broken cord at the other end there is a spool that the cord rolls up in to pull the cord until it stops the other end of the cord is a not in the cord pull on the knot the broken peice should come out turn the spool 2 times in the direction that is against the pressre while holding the spool in place feed the new cord in through the whole that you pulled the broken cord out of then tie the cord in a knot wind the rest of the cord up then feed the other end of the cord through the new pull handle tie the cord in a knot put the housing back on

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My chainsaw starts when there is no bar and chain on it but when I put the bar chain and side casing back on tighten the chain and pull the starter cord it is hard to pull and then the chain goes loose again
ANSWER : Have you just replaced the chain?If so there is a possibility the chain and drive sprocket don’t match causing the engaging spurs to ride on the sprocket teeth

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Hard to pull starter rope. It doesn’t pull smoothly. hard to pull.
ANSWER : Take the spark plug out–does it pull smoothly now? If not, the pull cord may be the wrong size or it is damaged and/or doesn’t rewind correctly. Does the machine have a compression release? If so, it may be plugged with carbon. With the spark plug out, pull the engine through several times briskly with the throttle open and the choke off to expel any excess fuel from the crankcase. Hope some of this helps!

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10 year old Toro 2017 lawnmower, suddenly stopped while cutting grass. Oil quite low. Cannot pull cord more l than few inches.
ANSWER : When you pull the cord does it hit a hard stop and not go any further or does it get really difficult?

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When I pull the cord, the string is hard to pull and recoils out of your hand about half way through the pull
ANSWER : Sounds like you have two problems. One the flywheel brake is not being released completely and second the flywheel key has been sheared. It is why the rope is being jerked out of your hand. The mower is out of timing and when the spark plug fires before it is suppose to, it jerks the rope out of your hand.

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My edger tipped over briefly, now the starter cord is hard to pull and it won’t start.
ANSWER : Try removing the spark
plug and squirting some carb cleaner or starting fluid in the
cylinder. Pull the starter cord several times for the piston to drive
out the oil. Clean the plug and replace it. Try to start as normal.
If you have starting fluid squirt a shot in the air cleaner to help
make it easier to start the first time.

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Chain saw won’t start – pull starter pulley hard to pull?
ANSWER : If it worked fine the last time you used it, then pull the spark plug and try pulling the rope. See if it’s easier or if gas shoots out of the plug hole. I’ve seen this happen when the diaphram in the carb goes bad from sitting over winter. It loads up the cylider with fuel and makes it very difficult to pull the rope. If there is no fuel in the cyliner and it’s still hard to pull, make sure there is nothing binding the clutch/sprocket. I’ve had chucks of wook lodged in there that caused it to bind the crank output, which resulted in a hard pull on the rope as well.

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