Posted by Kentb of SWMO on November 15, 2010 at 06:41:29 from (71.30.131.57):
In Reply to: Magneto no spark posted by dan w MN on November 14, 2010 at 18:59:32:
On a Magneto,the kill wire terminal is also the insulated terminal of the points. This is also the point where the coils primary wire is connected. The difference in the resistance reading between the point being closed and open, where you read the resistance on the mag coils primary is most of the time around ONE OHM of less. Most ohm meters, especially digital's, can not tell the difference of one ohm and zero ohms. I have a few ohm meters. I recently bought a relatively cheap analog meter from MCM Electronic just for the shop. If it got damaged it would be no great loss. TO MY surprise, I found with it set in the RX1 range I could read the difference between open and closed points in a Magneto. It was a VERY pleasant surprise.
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