[AT] B&S coil

[charlie hill]

Doug is there a way to measure the primary side on a Briggs and Stratton 
coil?  Since it magnetic there are no battery and points connections,  just 
the plug wire and ground.  I'm asking not telling.  I don't know enough 
about it to be telling.  grins.

Charlie

-----Original Message----- 
From: Doug Tallman
Sent: Sunday, July 01, 2012 2:03 PM
To: Antique tractor email discussion group
Subject: Re: [AT] B&S coil

5000 ohms is about right for the secondary side. The primary side should
be about 1 to 1.5 ohms. Doug T





Recentjester at aol.com wrote:
> sometimes heating a coil up will drive the moisture out low oven setting 
> or
>  solar oven.  All lawnboy coils have this problem sooner or later
>
>
> In a message dated 7/1/2012 12:17:59 P.M. Central Daylight Time,
> charliehill at embarqmail.com writes:
>
> Dean I  just read online that it's between 2500 and 5000 ohms for a BS
> Coil.
> http://www.briggsandstratton.com/support/frequently-asked-questions/Ignition
> %20System%20Theory%20and%20Testing/
> The  article was talking about the later version of B&S ignition but those
> numbers sound about right based on what I read
> while testing my tractor  coil a few weeks ago.
>
> Charlie
> -----Original Message----- 
> From:  Dean VP
> Sent: Sunday, July 01, 2012 12:16 PM
> To: 'Antique tractor email  discussion group'
> Subject: Re: [AT] B&S coil
>
> Don,
>
> It  takes a pretty good ohm meter to measure the resistance of a coil.  It
> might be
> somewhere from less than 1 ohm to 2 or three ohms. Inexpensive  ohm meters
> do
> not measure
> low resistance very well or very  accurately.  Also it is important to 
> zero
> the meter first
> before  measuring by shorting the leads on the lowest ohm measuring scale.
>
> Dean  VP
> Snohomish, WA
>
> "Do not go where the path may lead; go instead  where there is no path and
> leave a trail."
> - Ralph Waldo  Emerson
>
>
> -----Original Message-----
> From:  at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com]
> On Behalf Of Don  Bowen
> Sent: Sunday, July 01, 2012 8:57 AM
> To: Antique tractor email  discussion group
> Subject: [AT] B&S coil
>
> I have a mid 70s 10 hp  B&S I am trying to start.  There is no spark so I
> cleaned  the
> points but no joy.  I am measuring a short to ground through the  coil.  I
> do
> not totally
> trust the meter so what should the  resistance through the coil be?
>
>


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