From:Mutt e-mail:pigstye13-A-aol.com
Subject:RE: RE: RE: RE: RE: RE: RE: magneto Date:Mon Jul 31 20:12:42 2017
Response to:22181
only if ya got a AC battery

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"What else would ya like to know about the Bendix
magneto?" Can it charge an accessory battery to keep the
lights from dimming at stops?

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Your research on "highly unusual for a rotor to be the
issue" is wrong. I have seen quite a few rotors that
would
not start or run a motor. Even if ya use the electric
starter. What you need to find is called a magnometer or
gaussmeter. I have one. A good rotor, that makes a good
spark, measures 35 on my meter. 25 or less will not run a
motor at all. 28 and it's hard to start
What else would ya like to know about the Bendix
magneto?

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Does any one have a way to measure the magnetic force
required for the mag rotor? I have the rotor pulled and
it
will pick up maybe 1 pound of a metal object.
Also I found a guy who is into antique tractors who may
be
able to re-energize the rotor as all of the old tractors
used a magneto. He thought the rotor should be able to
pick
up 10 pounds. Should have some good answers to the mag
issues when I am done.
Thanks
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It's official. The lighting coil in place of the ignition
coil will produce a weak intermittent spark at 1/8"
(under
specs). Trying the ignition coil again I get nothing.
I am going to replace the ignition coil and re-magnetize
the mag rotor when I find the guy. There is nothing left
to
replace so it has got to work.
Thanks for the help.

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Thanks for the info. All my research says it is highly
unusual for the magnet to be the issue. The coil is
$90 so I hate to get it if it is not the cause. The bike
also has a lighting coil which someone said is the same
as
the ignition coil even though the part numbers are
different. Tomorrow I am going to try the lighting coil
in
place of the ignition coil and see if that works.
One other thing I am looking into is that in rural
Minnesota (where I live)there are a lot of antique
tractors
with magnetos. I have a line on a couple of local guys
who
could maybe do the re-magnetizing. I will know in a week
as
next weekend there is a huge antique tractor show in
Hastings, Mn. where I live. Thanks for your input. I
would
still like to know your XLCH connection info. I will let
you know how my trials are doing.
Funny connection. I am restoring this bike because it is
the same year and model as my first bike I got as a
Christmas present when I was 14. My best buddy had a 1962
Harley Sprint. We had great times and I spent many hours
on
the Sprint.

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I dug through my old parts and found a NOS rotor - but
it's
a 29707-63R. The Hummers didn't use 297xx parts, so I
think this fits a Sprint. No help.

I would suspect the coil before the rotor. The coils in
these mags were known to be the weak link.

If I remember correctly, these magnetos were produced by
Bendix-Scintilla, who made aircraft magnetos, but also
sold
flywheel mags for small equipment (snowblowers,
rototillers, etc) during the 1950s and 1960s.

I've contacted a company who re-magnetized my XLCH
rotors.
They're not familiar with Hummers, so they're going to do
a
little research and call me back.

Dave



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62 Scatt getting closer but still a few issues.

Magneto does not appear to have sufficient magnetic force
to create the required 6 volts. Checked the ignition coil
and it passed but it could still be bad. Bike runs with a
6
volt battery bypassing the magneto entirely.
Not having any luck so far finding a place to re-energize
the magnet but I know it is done. After that if there is
still an issue it could only be the ignition coil. I
already replaced the spark coil, plug, plug wire and
points.
Any ideas where to send the magneto for testing and
repair.
I live in Minnesota but don't mind shipping it somewhere.

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