New spark plug plus new air and fuel filter. Chainsaw will not start or even fire.

http://m.jonsered.com/ddoc/JONO/JONO2016_NAenNAesNAfr/JONO2016_NAenNAesNAfr__1153687-49.pdf


See page 20+. These saws are notorious for flooding at start. If it doesn't fire by the 3rd pull, stop, remove plug. If plug is wet its flooded. If dry, no fuel and as always, check it has spark.


I expect its flooding... a quick way to get the cylinder and crankcase cleared is to remove the spark plug AND AIR FILTER. Use low pressure air (~10 psi) into the plug hole for a few seconds. reinstall plug. Follow starting instructions.


If it floods again, repeat clear cylinder/crankcase, and follow starting instructions but don't use decompress.


Comment below and I'll assist further if need be.

If everything checks out with fuel and spark. I think your chainsaw has poor compression. I would inspect the REED Valve first.

Check the gap between the magneto and the magnet on the flywheel, if it is too much of a gap you wont get spark. We are talking .007 inches or less. You need a feeler gauge to set this

2011 chainsaw with only two hours on it ??? I'd suspect a bad carb

If it turns, then the battery is OK. Either spark plugs are not firing in proper order (wrong firing order), no power to spark plugs, or no fuel because of fuel restrictions (dirty fuel filter). Inspect the air filter to ascertain its not clogged air. If you smell gas, then you saturated the spark plugs, which is why it refuses to run.
Let it sit for half hour to let spark plugs dry. Inspect to ascertain its not dirty spark plugs, which will also prevent engine from running. After ascertaining its proper firing order, spark plugs are clean, and there's power to distributor cap, ascertain there's fuel in fuel lines by squirting half second (short squirt) of starting fluid into air filter. Close the air filter housing to trap flammable starting fluid gas. Turn engine without giving throttle. Let starting fluid be ignited by spark plugs. If it won't start, then spark plugs are not firing to ignite starting fluid gas. If it starts briefly, but won't run when you give throttle, but catches when a 2nd person squirts more starting fluid into air filter just before engine stalls, then its a fuel restriction issue or no fuel in fuel lines.

test the steps and fix it. God bless you

Spark Arrester

Inside the muffler of most chainsaws is a screen-like device called a spark arrestor. If the chainsaw stops after a few seconds or won't start at all, the spark arrestor might be clogged. The spark arrestor prevents small embers from being emitted by the engine to prevent fires. Over time the spark arrestor will become clogged with soot. Remove the spark arrestor and clean with a wire brush or replace.
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Carburetor

If the chainsaw engine stops after a few seconds, the carburetor might be clogged or have bad fuel in the float bowl. If old fuel was left in the chainsaw for a long time some of the volatile ingredients may have evaporated, leaving a thicker, stickier product that is more like varnish or shellac. This sticky fuel can clog up the small jets and ports in the carburetor and it can be difficult to burn allowing the engine to only run for a few seconds. The only solution is to drain the old fuel from the float bowl and thoroughly clean the carburetor with carburetor cleaner. If that isn't effective, replace the entire carburetor.
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Gas Cap

The gas cap on YOUR chainsaw is designed to let a very small amount of air into the tank. This is necessary because as fuel is consumed a vacuum is created in the fuel tank. The gas cap has a tiny vent to let air into the tank and equalize the pressure. If the gas cap vent gets clogged air can't enter the tank and eventually the vacuum pressure in the tank exceeds the vacuum pressure of the engine, and the engine stalls. The vent often cannot be cleaned because it is made of a semi porous ceramic material. If the gas cap vent is clogged, replace the cap.
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Spark Plug

If the chainsaw starts and stops after a few seconds The spark plug may be defective. Although this is not very common it is easy to test. Try removing the spark plug and installing a new one.
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Fuel Filter

If the chainsaw stops after a few seconds, the fuel filter might be clogged. If old fuel was left in the chainsaw for a long time some of the volatile ingredients may have evaporated, leaving a thicker, stickier product that is more like varnish or shellac. This sticky fuel can clog up the fuel filter and it can be difficult to burn allowing the engine to only run for a few seconds. The only solution is to drain the old fuel from the fuel tank and replace the fuel filter.

have you tried spraying Starter fluid into the Carb to see if it will at least try to run and verify you have good spark?

try priming it mite work lol

First of all make sure the air filter is clean. Next I would dunp the gas out of the saw and put fresh gasoline oil mixture back in the fuel tank. Maybe a little condensation water got in the fuel you had in the tank.

So many places to start...As you have only provided only limited information.

RECOMENDATIONS:

-Drain all fuel from the Saws fuel tank.
-Remove and REPLACE with a NEW spark plug.
-Remove and RELPACE with a NEW Air filter.
-With spark plug and air filter removed and fuel drained pull the starting cord many times 12 or so to ensure there is no fuel in the chamber and also check for a spark at the plug.
-RE-MIX WITH NEW FUEL your 2 cycle oil to the correct ratio in a clean fuel can. it is OK to dump some in the Saws fuel tank slosh around and dump out in an approved container for disposal.

Refuel hold off on putting back on the air filter until you have had it running.

Hope this tip helps.

R/
David