Chainsaw Repair

This from the creative mind of 3000FPS. Putting it here so that it does not get lost.

3000FPS: When I was working on my Dolmar 119 I had no spark and it was a trigger and a coil set up.

What I did was to connect a 12volt battery to the input of the coil very quickly and remove it.   With a spark plug c-clamped to the top of the cylinder I could induce a spark.    The removing of the 12v is what makes the spark.  I used some jumper wires with alligator clips from radio shack.   You have to make sure everything including the negative side of the battery is grounding through the cylinder.

I found my coil was good the trigger was bad. I might also add is the contact of the 12volts has to be quick because a car battery has enouph amps to burn out the coil if you hold it on there.  You could also try a small 9v battery. Make sure the body of the coil if not mounted in the saw is grounded also.

Attached is a schematic of the connections.

not sure i've heard of the trigger-coil setup. got a list of saws using that? pix?

Sometimes referred to as exciter/coil or pickup/coil. Basically a two part electronic ignition where the actual pickup is separate from the coil. e.g. there is a box next to the flywheel and the coil is mounted else where. Used on many saws from all vendors Husqvarna 288, 61 many others, lots of Homelite, Dolmar, too many to note. But I am sure you have seen one of this type, just referred to in another way.

Look here post #23 for picture of Husqvarna 281 version

http://chainsawrepair.createaforum.com/husqvarna/288xp-no-sparkle/20/

so you're telling me my early husqy 61 rancher has this kind of setup? L I B

L I B

The 242XP, 281 and 288 had them on top, for what reason I'll never know but the 61, 66 161 and 266 had them down low under the starter.