Whut the heck is amatter with my 2100?

[Bret4207]

Okay, so here's the story. Back in the early 80's I built up a Husky 2100CD/XP outta parts. It ran forever with not so much as a hiccup. Didn't use it for a few years and then needed it. Surprise! No spark. Changed out plug for new Bosch. Nothin'. Checked the wiring, isolated the kill wire, tried other plugs, etc...still nuthin'. Pulled flywheel, magnet seems to have good pull, cleaned everything on FW and coil up- still the same. Gotta be the coil, right? Got a used coil- NUTHIN'. So now I'm at the point where I can either sink a mess of money into a new coil (SEM) or try a different FW. Which way should I go? I've checked ground between crankcase and jug too. This thing should have spark, but I've never had a 2100 coil go bad and I've worked on a lot of them. The only 2100 FW's I ever had to replace had physical damage. The FW isn't just solid metal and the magnet. It appears to have resin on the inside surface and (maybe) some wire or some other electrical components going to an insert opposite the magnet...not sure if this is a trigger of some sort?

 

[trappermike]

What model of ignition does it have in it? A Bosch electronic? Or does it have a red electronic,sometimes these ignitions got swapped around in their life. Did the used ignition you tried in it work for sure before you tried it in your saw? Also did you also use the flywheel also when you tried the other ignition? A flywheel and ignition unit cannot be mixed up with others. Maybe the used ignition you got was dead,or it needs it's matching flywheel. It was easy to mismatch those ignitions and flywheels,although different,some flywheels looked the same.

 

[backwoodsman42]

Have you checked the kill switch? Some times they go to ground inside.

 

[Bret4207]

It's the SEM-GA ignition with the proper FW, there is no kill switch to go bad, and as I said, I isolated the wire so it can't contact the saw. I don't know if that FW has some trigger in that matches up with the coil, but the coil is a one piece unit.

 

[hotshot]

You've been lucky on the SEM GA staying alive that long, I've got four or five dead ones stacked up in a box over the years

Keep your eye on fleabay as they come up every now & then

 

[Marshy]

Flywheel magnets to go bad. I don't know a way to check them other than replace them and see if it works. Best of luck.

 

[Daserlon]

You've been lucky on the SEM GA staying alive that long, I've got four or five dead ones stacked up in a box over the years

Keep your eye on fleabay as they come up every now & then

Amazingly enough, search husqvarna 2100 on amazom. Supposedly new oem ignition coils there. I have a dead 2100 also so i'm tryin to figure mine out too.

 

[Bret4207]

Amazingly enough, search husqvarna 2100 on amazom. Supposedly new oem ignition coils there. I have a dead 2100 also so i'm tryin to figure mine out too.

Tried looking at amazon, didn't see any coils, got a direct link?

 

[backwoodsman42]

I have a Sem GA as well and it does have a kill switch. Maybe a year model difference ?

 

[Bret4207]

Yes, it has a kill switch wire, but the kill switch is disconnected and the wire isolated from ground. Trust me, it has zilch to do with the kill switch or wire.

 

[Grande Dog]

Howdy,
Sounds like you covered the bases. One thing comes to mind is the plug wire. (I wasn't sure if you switched wires with the ignition.) I have seen the ends arc out and deteriorate the wire. Eventually the ignition it can't throw enough juice to bridge the gap. I like that you checked continuity, that can be a head scratcher the first time around. You could try loosening the cylinder bolts, and retightening to ensure it's a good ground.
Regards
Gregg

 

[Daserlon]

Tried looking at amazon, didn't see any coils, got a direct link?

They call it an armature plate. Part #501 831 901. I talked to the seller and they said all their husky parts are oem husky

 

[Bret4207]

They call it an armature plate. Part #501 831 901. I talked to the seller and they said all their husky parts are oem husky

Okay, thanks, found it. Found it at Baileys too.