Testing Coils

[Sty57]

I know a lot of us have a bunch of part saws laying around.

Is there any way to test a coil to see if it's any good without having it on a running saw?

I have looked at a few workshop manuals but I haven't seen a test for checking a coil. It would be nice to know if the box of coils I have are any good before they go into a builder saw.

 

[Warped5]

Had a wonky one when putting together last 262.

Posted it in the Husky thread and @PogoInTheWoods came back with a testing procedure. IIRC, it is to set resistance on multimeter to 2K ... put red on HT lead ... touch black to one of the other terminals, then the other .... readings should be quite low (<6) and pretty identical.

In that instance, I put in an AM coil from Huztl and have had zero problems.

I hope others chime in here with their experiences.

 

[heimannm]

On older points ignition coils (non electronic) there are two sets of windings with a common terminal that is also the ground wire. The primary windings will have a low resistance, generally 1-10 ohms and the secondary much higher, 1 to 10 K ohms. If you have a fancy LCR meter you can measure the inductance of the coil as well as the capacitance of the condenser (capacitor) to further verify the components before you put them on a saw.

Mark