Question about Husqvarna , No.455 Rancher, 20" Gas - Powered Chainsaw
I have a Husqvarna rancher 55. Cut several loads of wood this year until saw started to run erratically and then stop. Saw would start after choking, but then stop like not getting gas. Didn't matter if it was hot or cold. Eliminated possible problems, plug, fuel filter, tank vent, fuel mixture. Now saw has no spark. Determined the coil was bad after unplugging kill wire and no spark jumped from the plug to ground out on the motor. Replaced the coil. Checked the gap, checked the magnets in the flywheel, still no spark. What haven't I checked?? Why no spark? Should I check for continuity?
I too have a rancher 55 and had what sounds like the same problem this week. It would start fine but run for only a few seconds at a time. I took it all apart today and found the problem - a cracked fuel line. In the places where I could see the hose it looked fine, but it wasn't until I removed the fuel tank that I found the crack...right where it exits the tank and then goes thru the housing above it. You don't need to remove the tank to replace the hose but it is easier that way. You do have to push it thru a grommet at the top of the tank. I read some other posts about checking the tank vent to see that it's not plugged up. Mine was ok so I knew it had to be something else. The vent is in a hole about the size of a pencil and is recessed about an inch into the tank on the upper right side. Its partially covered by a plastic cap that's part of the vibration damper, which can be removed to gain access to the vent. The vent tube can then be pushed out from inside the tank with the use of long needle nose pliers, but be gentle. I just loosened it then pushed it out with a finger. I put it all back together with a new hose and its running like new again!
Posted on May 31, 2009
It doesn't sound like you've checked the on/off switch. Make sure its good. Also, make sure the ignition coil primary (small wire) isn't grounded (touching) to the saw frame.
Posted on May 30, 2009
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Posted on Jan 02, 2017
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