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1960 evinrude coil

J

Jnicholes

New member
Hello!

I posted before about a 1960 evinrude motor problem. I just wanted to say thanks for all the help you guys gave me. I have one last question. I took out the coil and tested it with a multimeter. According to the Internet my primary is good, but my secondary does read a lot less than the primary. According to the Internet they should read the same. Does this mean my coil is bad? Can anyone help?

Thanks!

Jared
 
Doing a spark gap test is about the only way to test the coil I have never checked the windings. The cost of new coils makes it unecessary to test. If you suspect a bad coil just replace all three points, coil and condenser. If its a two cylinder replace them all check the timing with a timing light and enjoy the rest of the summer. You shouldnt have to pull the flywheel for a few years to replace the points and condensers. I used to just set the points and go for 25+ years I have found using a timing light makes the motor much more dependable, quicker cold starts and the plugs burn alot cleaner.
 
Is this for the 1960 75hp motor? If so racer may know more you really need to post year and HP when starting a thread for better responses.
 
I remember reading a thread a while back the guy found out there was a crack somewhere causing the spark to arc internally before it got to the plugs
 
Jnicholes said:
Hello!

I posted before about a 1960 evinrude motor problem. I just wanted to say thanks for all the help you guys gave me. I have one last question. I took out the coil and tested it with a multimeter. According to the Internet my primary is good, but my secondary does read a lot less than the primary. According to the Internet they should read the same. Does this mean my coil is bad? Can anyone help?

Thanks!

Jared
Click to expand...

What kind of junk are you reading anyway? And what coil are you talking about? OK, a generic answer: Generally, the primary should be around an Ohm, and the secondary should be a few k-Ohms. That means a few thousand Ohms. A heck of a lot more resistance, not same as, not less than. Typical would be 3,000 Ohms to 5,000 Ohms. Depends on the motor model and coil manufacturer.
 
BTW, if we are talking about a 1960 75hp, the 580243 coil is $241.78 Probably not something you would want to replace without darn good reason.
 
Jnicholes said:
1960 evinrude motor. I tested the coil with a multimeter. My secondary does read a lot less than the primary. Jared
Click to expand...

I assume you're speaking of the low ohm reading of the meter... the above is normal. The important thing is that you obtain a reading between that primary, the secondary wiring, and the ground wire... otherwise that would indicate a internal break in the wiring that would result in the coil being required to spark across that internal break which in turn would result in weak, erratic, and eventually no ignition for that coil. It's common practice to check the continuity of the actual spark plug wire also.
 
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