Re: 1970 Sears 3hp

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amuller


Replies: 1055
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#77658
quote crparisi:

I came across a 1970 3hp sears motor with no spark. Took off the flywheel and decided to try and replace the magneto, coils, etc. It appears that the upper unit was made by Tecumseh. I’m not sure if the replacement parts exist but any suggestions on where to go/parts that could work but might not be the exact replacement???

Try cleaning and adjusting the points before spending money on replacement parts. If that doesn’t get you spark, check primary and secondary coil resistance, and check condenser. These old Tecumseh ignitions are closely related to lawn mower ignitions and are usually pretty reliable.