OMC Universal Coils and Magnetism

[Buccaneer]

Crosbyman, That’s as good a possibility as any at this point, and makes sense. Thanks!

Mumbles, I “believe” I checked the ohm readings first without the plug wire,
and later with, and were virtually the same reading. At any rate, both coils got’s new
plug wire off the middle of the same 50 foot roll.
It does make me feel better that yours tested at .9 on the primary.
Most likely well within specs, and yet higher than my presumed good coil at .3 on the
primary.
Hopefully I can spin the flywheel next week and check the actual spark. Thanks.

Prepare to be boarded!

[Mumbles]

Buck:  What I meant was to join the test leads of your ohm meter together and see if you get a reading. An auto ranging meter should show 0.0 ohms while a regular digital meter will give you the resistance of the leads themselves, 0.7 ohms for example.

[Buccaneer]

Mumbles, I have never checked my leads resistance on my “auto ranging” nor
any meter for that mater, but you bring up something to keep in mind.

The first coil I checked read .3 on the primary, the other 2.0, and both
were checked multiple times with the same results.
I may be putting the flywheel back on the motor tomorrow and check for
spark……. that will be a good start if I have spark on both cylinders!

Prepare to be boarded!

[aquasonic]

Mumbles wrote:

Buck:  What I meant was to join the test leads of your ohm meter together and see if you get a reading. An auto ranging meter should show 0.0 ohms while a regular digital meter will give you the resistance of the leads themselves, 0.7 ohms for example.

My meters are non-auto ranging, so they have an adjustment knob to zero out prior to measurements. I just touch the leads together, then turn the knob until the reading is zero ohms. This takes the resistance of the leads out of the calculation.

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