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I was given a MTD MD 310-430 that has a Tecumseh HS50-67174C…

I was given a...

I was given a MTD MD 310-430 that has a Tecumseh HS50-67174C Engine and the egnition switch was removed, what is the electric diagram for this engine. I have no spark. Does it need a wire to something to get spark

Mechanic's Assistant: Can you guesstimate how old the engine is? And has it done anything like this in the past?

Thanks, *****: Do you plan on doing the work yourself?

Yes

Mechanic's Assistant: Anything else we should know to help you best?

It looks like a wire ran from the throdle by the carb to the switch

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Answered in 14 minutes by:
11/21/2017
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 31,405
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert
Verified

Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!

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The engine has electronic ignition, and the coil and the magnet in the flywheel, is all that make the spark. It does ot need a power supply. Key switch would only be used to ground the spark and kill the engine.

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Customer reply replied 7 months ago
That is what I thought so I will pull the flywheel and see what that looks like. Thanks
Bernie

Flywheel does not need to be pulled. Coil/magneto is external to the flywheel.

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I see the question is still open, please use the 5-star rating system on customer side to close the question and get me credit!

Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 31,405
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert
Verified
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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