New here, and need a little help if possible

[Woodbutcher]

Been running and rebuilding my Stihl saws for along time, I have a tree service and like finding old abandoned saws and getting them back to spec.. Today I got a 066 redlight from a customer, said it was his dads originally but stopped running. Thing looks like new, really..
Well, the guy tried to get it running and bought a cheap carb and coil, gave up when it didn't..He gave me the original walbro carb and the redlight coil too… When I got home I pulled the muffler off and pistons scored bad, but minimal transfer on the cylinder and I'll clean that up tommorow..
But I know the aftermarket coil won't work on the redlight , and I'm sure the original redlight coil he gave me is good, it was the piston that made this saw stop running for sure..
The redlight coil has two plug ins on it and I'm not sure what goes where, does a wire from the actual redlight plug in one and the kill switch in the other ? Looks like he put the two black wires together to run the aftermarket coil which only has one plug in on the coil, and there two plug ins on the actual redlight coil..so I'm stumped which black wire goes where, there are two that I need to unsplice and put connectors on so they'll plug in to the redlight coil, but not sure which goes where..I know this is long winded, but a pic or explanation if anyone knows will help..I'll post pics tommorow..thanks in advance, Pete

 

[Woodbutcher]

Pics of the saw, you can see the coil he put in it, but obviously it’s not gonna work but I give him credit for trying. But the two black wires I believe he spliced together, and that’s my problem. I have the original coils as shown, and it has two plug ins, I just need to figure out which black wire goes where, I don’t want to just try it both ways vpcause I’m a little worry about ruining the original coil,it’s not somththing I can replace. Any help is appreciated..one black wire has a red line in it..

 

[Leon Couper]

If you can follow your two wires one will go to kill switch and think the other one goes to earth.
But when you get the coil on which they go around will be a bit of trial and error

 

[Woodbutcher]

If you can follow your two wires one will go to kill switch and think the other one goes to earth.
But when you get the coil on which they go around will be a bit of trial and error

Thanks,I’ll hafto wait for the new piston and stuff to get here and give that a try I guess. Thanks for the reply,Pete

 

[Leon Couper]

In a two-stroke engine with a kill switch, if one wire from the ignition coil is grounded and another is connected to the kill switch, the third wire from the coil typically goes to the points or the ignition module that controls the spark. This wire is essential for the coil to build up a magnetic field, which is then discharged as a spark to ignite the fuel, according to a Reddit thread.
Pete I just blow your picture up and the green/yellow wire is your earth and one will go to your kill switch and the other track it back and see where
it ends up. The top three lines are off the intrnet and thought they may help you.

 

[Old Kiwi]

I have a runner but NZ market wonder if they use the same colours