ry thing turns smooth put the plug back in ,and it is hard to pull
Garden

Experienced gardeners share their insights in answering this question :
Check the starter pulley, if the sides have splayed out the rope will double in the pulley and jam up, the 266 is a fairly old saw and had no deco vave, so the compression is quite high.

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 :

If the spark plug produces a spark and you are still having difficulties starting your chainsaw, it`s time to check the gap. The spark plug gap is an air gap between the ground electrode and the center electrode. If the gap is too small, the spark struggles to ignite the fuel and air mixture.
A dirty carburetor, bad gasoline and low-quality two-stroke oil that creates deposits all contribute to chainsaw starting problems.
If your chainsaw still starts and then stops working, check the air filter. Clean or replace the air filter if it is dirty or damaged. Another reason that your chainsaw starts and then stops working could be that the spark arrestor is dirty or clogged.
1. Dull chain and or improper lubrication to the bar and chain, sharpen and or clean the bars oil holes. 2. Air filter and fuel filter for restrictions and contamination, clean or replace as needed.
If it is difficult to start the ride-on mower, the most common reasons include: Old fuel; make sure to use fresh fuel, especially after winter storage. Spark plugs might be dirty or damaged. How to examine and replace a spark plug on your ride-on mower.
If your chainsaw still starts and then stops working, check the air filter. Clean or replace the air filter if it is dirty or damaged. Another reason that your chainsaw starts and then stops working could be that the spark arrestor is dirty or clogged. If this is the case, clean it with a wire brush.
If the chainsaw won`t start, or starts and then stops and you find the spark plug wet with fuel mixture, it means that the engine is flooded (you will probably smell petrol). It happens when too much fuel enters the combustion chamber, possibly because you have pressed the primer many times.
The fuel line may be clogged from stale fuel deposits, more reasons to cause your chainsaw to cut out when applying throttle. If a fuel line is cracked, it will leak gasoline and draw air from outside into the fuel line. If the line is leaking fuel, it needs to be replaced.
A clogged carburetor is most commonly caused by leaving fuel in the lawn mower for a long period of time. 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 cause the engine to stall.
My chain saw starts and then dies what is wrong? This could be a number of things and is most likely fuel or storage related. Over a short period of time, fuel will become stale. If the unit is stored with stale gasoline, the system will become clogged or restricted.
Press it up against the side of the bar and an outside tooth on your chain. When you press, is there still a gap between the bar and the straight edge? If so, you`re still in pretty good shape. With a worn chainsaw bar, pressing your straight edge against that outside tooth causes the tooth to shift over.
A spark plug might be defective and needs to be replaced.

If your chainsaw has a defective spark plug, it cannot create an electrical current to ignite the system. Remove the spark plug and inspect if it is dirty, cracked, eroded, or damaged. There may also be a heavy carbon buildup or a burned-up electrode.

Typically, we recommend a break-in period of six to ten tanks of fuel. During this period, the engine should not be allowed to run at a high rpm for extended periods.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

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.

Read Full Q/A … : Garden

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!

Read Full Q/A … : Garden

Starter rope hard to pull. It’s not smooth and takes a lot of effort.
ANSWER : Make sure the brake is off and retest. If brake is off and still difficult to pull, remove the side cover, chain, bar and retest. If still not right (remove sparkplug), remove the muffler and make sure that the spark arrest screen is clean and verify that the cylinder and piston look clean and smooth by looking into port. You can clean the cylinder by spraying wd40 and pulling the rope untill it all comes back out. Verify that the rope pulls smoothly before you reinstall the spark plug. If all looks good, reinstall muffler and retest. If the compression is normal, it should be rather hard to pull thru the compression stroke. Reinstall bar and chain for final test.

Read Full Q/A … : Garden

I need the spark plug gap for an Ariens ST624E. the spark plug = 21533500
ANSWER : The recommended setting is .030″

Read Full Q/A … : Garden

Will not start. changed to a new plug. Plug does have a spark. Seems to be getting gas as the more I pull the rope the more gas collects in the cylindar. Last spring I loaned it to a friend. Last summer I ran it briefly & it was idling extremely fast. I changed the gas before I tried to start it. Could the idle be messed up ? Idle Screw What is the approximate counter clockwise turns to get the idle in the “ballpark” to run ?
ANSWER : Better check friend might not have added oil to gas and it scored the cylinder wall

Read Full Q/A … : Garden

Spark plug gap – Poulan Wild Thing 2375 18" Gas Chain Saw 2.5 Cuin
ANSWER : Most small engines run with a 0.025 inch / 0.63 mm Gap

Read Full Q/A … : Garden

What should the spark plug gap be on a weedeater trimmer 25cc
ANSWER : Set it at .025

Read Full Q/A … : Garden

Timming pull string is hard to pull wont start. i replaced the rings
ANSWER : Take out the spark plug and try turning it over

sounds like too much oil inside it
can cause compression issues
drain clean the oil
you can tell lots with no plug in
could be anything in the transmission to the trimming head
perhaps the clutch is seized up

Read Full Q/A … : Garden