johnson 1951 10hp coil compatability

[rick101]

Does it use the same coils as the 54 to newer 50 johnsons,
part # 18-5181

Is someone could point me to a parts manual as well that would be very helpful is determining if I should purchase this motor.

 

[steelespike]

Re: johnson 1951 10hp coil compatability

Catalog says coils 10hp 49-63 and points 50-63.Are your coils the then new plastic coils.The older paper wrapped coils seldom fail.As most of us know the plastic molded coils are all suspect as they age.

 

[F_R]

Re: johnson 1951 10hp coil compatability

Don't have the 1951 book, but that would be model QD-12 or QD-13. Is one of those what you have?

1949-50 Models QD-10 and QD-11 use the 580040 coils, which were obsolete 40 years ago. Like I say, I don't have the QD-12 or QD-13 book.

But if it has the magnets in the flywheel and push-rod operated points, it is the old 580040 coils. If it has the magnets in the flywheel and rocker arm points, it uses the Universal coil (18-5181)