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Use sharp Chain. If saw has changed climates since previous use, adjust carburetor to accommodate the change, ensure proper fuel mix ratio, check spark plug, and if you still have problem inspect / replace piston rings.
Remove the side casing. (bar side) Take off bar and chain. Remove E-clip holding the clutch drum on. Remove clutch drum and needle cage bearing. This should expose the clutch. Remove spark plug. Use a piston stop to stop the piston rising, Sometimes a knotted piece of pull cord fed into the cylinder is just as good. Turn the clutch clockwise with a socket to unscrew.
To put clutch back on turn anticlockwise till piston cycles back and hits the piston stop again and tighten. Replace spark plug and clutch drum, bearing, bar and chain and side casing.
I have a Homelite XL and was having problems with rope pulling from difficult to unable to pull rope while trying to start saw. I removed the muffler, squirted some WD40 through the exhaust port ABOVE and BELOW the piston compression ring. Then pulled the rope about 20 times without spark plug to fully lubricate the piston and cylinder. Left it till the next day, pulled it through about 20 more times, put the spark plug back in,and it works well now. Guess it was just gummed-up a little and the lubrication freed it.
You'll have to stop the crankshaft from moving. The easiest way to do this is to take the spark plug out, pull the starter rope out a little ways, and stuff some of it into the spark plug hole. Spin the sprocket until it stops turning, that will put the piston at the top where it can't pass TDC and stops the crank. Turn the sprocket until it comes off then put your new one on.
one piston ring has expanded now having no or a very fine gap increasing the compression ratio causing this to happen. When the spark plug is removed it is very easy to pull on the cord in any means. A inspection is due of this engine or a new chain saw is needed
First off Husqvarna does not make Craftsman chainsaws. Chainsaws are very high compression usually 125 to 150 lbs. pulling the rope slowly will make it very hard to pull. Short fast pulls are best, this allow the flywheel to build momentum to get it past the compression portion of the piston trvavel.
you need to check to see if the piston is scored.pull the muffler off the saw and look inside.the piston is right there.if the piston is scored all you can do is change the piston and cylinder assembly.if the saw is new it might be under warranty.check with who you bought it from.most saws have a one year for consumer use.....let me know if this helped...................
Special tools may be require and can usually be purchased form the maker of your saw.
Often the spark plug is removed, the piston positioned to just before TDC, and a length of starter cord or rope fed into the cylinder. This allows the the clutch to be be removed without damaging the piston or cylinder.
1. Don't put all of starter cord or rope into cylinder.
2. Ensure the piston is above the exhaust port.
3. The threads are often left handed.
there is a special tool to remove the clutch properly with out damage to the clutch or springs.it is so much easier to take it in some where and have the proper tool used.the tool is $45.00 to $65.00 to buy one.most dealer will only charge you a couple of bucks to remove it and install one for you,it only take a second to do.I,myself have made a couple of differant ones because chainsaw differ so much.let me know and maybe i can get you a picture of the one you need