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Small Air Cooled Gasoline Engines

Briggs and Stratton 6b-h Coil?


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  #1  
Old 06-30-2019, 05:44:45 PM
Mickey85 Mickey85 is offline
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Default Briggs and Stratton 6b-h Coil?

Hi guys.

I inherited my grandfather's Craftsman mower, with it's original Briggs 6BH. He bought it new in...57? 58? I don't remember when dad said. I loved using it as a kid, and it ran wonderfully.

So now that I got the thing, the coil appears dead. I can't get any resistance between the wire and ground, and when I rest the plug on the engine cover, I get no spark.

When I look online, I can find 2 NOS coils for the thing for $100 each. I'd love to find a more cost effective way to fire it. From what I can tell it has a 4 screw Coil, p/n 291617. Any suggestions for where to look? $50 for a usable coil is ok, but I can't justify $100 for it at the moment.

Also, does anyone happen to know of any Sears literature from that period that's online? I'd love to know more about the mower itself. (Also pictured in the background is my other Grandpa's simplicity 4211. It's my workhorse)
Thanks all.
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Old 06-30-2019, 11:48:24 PM
ArodaPowerCo ArodaPowerCo is offline
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Default Re: Briggs and Stratton 6b-h coil?

The easiest way to get that thing to spark is going to be to replace the coil. It is possible to convert that engine to a Magnetron (no points). You will need the modern coil part #591420 (or equivalent aftermarket). Also, you will need to replace the flywheel with part #297949 (or it's supersessions 395653 and 799682). Look on epay for the flywheel. Should be able to get it all done under $60 if you play your cards right.

Been a long time since I messed with a "number series" Briggs, but I seem to remember doing this for a customer.
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Old 07-01-2019, 01:54:04 AM
Ed Radtke Ed Radtke is offline
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Default Re: Briggs and Stratton 6b-h coil?

I think Maplegrove distributers have that coil.
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Old 07-01-2019, 02:31:32 AM
Ogrebeast64 Ogrebeast64 is offline
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Default Re: Briggs and Stratton 6b-h coil?

Does it have a two or a three leg coil? If it has a two leg, you can most likely put a Magnatron™ coil on it from another engine of similar size. If it's the three leg coil, I may still have one over here. It's a hot puppy and threw me back a few feet once.
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Old 07-01-2019, 07:46:14 AM
Bruce Dorsi Bruce Dorsi is offline
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Default Re: Briggs and Stratton 6b-h coil?

Quote:
Originally Posted by Ogrebeast64 View Post
Does it have a two or a three leg coil? If it has a two leg, you can most likely put a Magnatron™ coil on it from another engine of similar size. If it's the three leg coil, I may still have one over here. It's a hot puppy and threw me back a few feet once.
#291617 is a 3-leg coil.
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Old 07-01-2019, 09:06:22 AM
gdstew gdstew is offline
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Default Re: Briggs and Stratton 6b-h coil?

I don't think you can mount a 2 leg coil in place of a 3 leg coil without making some kind of mounting bracket. I think it best to stick with the 3 leg coil and points.
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Old 07-01-2019, 12:44:42 PM
Doug Tallman Doug Tallman is offline
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Default Re: Briggs and Stratton 6b-h coil?

Somewhere in the last year or two, I saw a bare coil advertised as a replacement for the 3 legged coil. You just put the coil on your original laminations. I can't seem to find it now. Anybody else see this or was I dreaming it?
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Old 07-01-2019, 02:33:20 PM
EvilDr235 EvilDr235 is offline
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Default Re: Briggs and Stratton 6b-h coil?

Both eBay and Amazon sell aftermarket replacement coils. If your'e your lucky, you might find a factory NOS coil. Have you checked with the sellers on this site ? You might also check your area for older small engine repair shops that may have some goodies hiding in the back room.
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