Re: 15 Evinrude 1975 no Spark Driver coil ?

[Don]

quote cannuck:

I did clean ground on block and mag plate .I can run those tests as u indicated I took d-coil off cleaned the ground mag plate under and coil bar. Other than physically looking and checking timing mark opening closing I cant see them as bad not pitted etc. My Merctronics says condensers are good and external coils testing good . but will get back to u . I wonder is there any test on the driver coil to see if its within spec. etc. ?? Thanks for input

Check that ground strap connection with an ohm meter, don’t just clean the connection. Be sure to rotate the mag plate while resistance testing as well. You can check those mag plate primary leads/harness with the low ohms scale as well, again be sure to rotate the mag plate while testing to help show split/intermittent connections. Check for shorts to ground/mag plate using the high ohms scale, readings less than infinity indicate the lead is pinched/shorted to the mag plate somewhere. Are you using the coil locating tool to ensure correct driver coil air gap?