Husqvarna 40 Chain Saw The saw has been unused for about a year -- before that, always served well. I purchased fresh petrol and a new spark plug, cleaned air filter etc. The I noticed: no spark at all, when I press the plug against the cylinder and pull the rope. I guess there is a magneto, capacitor and what else... What might be broken, or am I making some mistake? -J.

What condition is your spark plug in?Is your filter clean?Is your gas-oil mixture correct? Is your gas fresh?Is your brake releasing?Is the blade and chain on correct?

Fuel, Chain saws are the most pickiest when it comes to fuel, I normally buy the Premixed Fuel already made for me at lowes they have a 40:1 and a 50:1 ratio mixes. I would try that.

Sounds like the ignition module or spark plug. The ignition module is what controls the spark plug that gives your saw the firing capabilities. Before you purchase one of those, replace the spark plug and see if that works. The 240 is a newer husqvarna; so I am skeptical to say it is the ignition module. However, any new product can have a bad part on it.

Your saw may have gotten flooded and won't start. Make sure your gas mixture is 50/50 gas to mixing oil. Always use fresh gas. If you make up gas and don't use a whole gallon at a time, put some fuel stabilizer in the mixture; so it will still be fresh the next time you use it.

The fuel may have been replaced, but is the fuel filter clean or is the fuel line cracked? Even though you cleaned the spark plug, did you check to see if it has a spark? If not, maybe a new spark plug or check the wire to make sure there is nothing blocking where the wire and spark plug connect. Is the air filter clean? Just a few more things to check out...

Check the fuel filter for plugging (which is common when fuel is left in the machine over winter storage). You should run the carburetor dry after emptying the fuel tank for storage.Hope this helps!

i think you really need fresh fuel, clean out tank as much as poss with new oil also. will probably take a while to pump fuel through

Try this get back to us with the results.
Ignition Coil Test
http://www.youtube.com/watch?v=L7WNBDRG4C4&feature=PlayList&p=3789DC1EE87C8098&playnext=1&playnext_from=PL&index=21
You may need to use a jumper wire between the threaded part of the plug and the cooling fins. You don’t have to bend up the electrode. HTH
Lou

Remove the spark plug and test for spark. If ok, try some starting fluid in the plug hole, install the plug, and try to start. If it runs a short time, it is not getting fuel. Check fuel lines including inside the tank. Clean or replace the air filter. If this saw is fairly old, the carburetor probably needs a re-kit and cleaning. Does it have good compression? Check the muffler for plugging. Make sure the fuel/oil mix is fresh. Good luck!

If checking spark make shore the out side if plug is earthed to chain saw.
Fresh clean fuel, clean fuel filter filter pull exhaust off and check piston is ok. Than check for flooding. start there.

yea you have to take it apart sorry