From: Alan Pearce <kiwiantipodean@googlemail.com>
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Date: Mon, 2 Aug 2021 14:44:53 -0700
Subject: Re: [EE] Honda MT250 ignition waveforms
Thread-Topic: [EE] Honda MT250 ignition waveforms
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On Mon, 2 Aug 2021 14:12:12 -0700
"Harold Hallikainen" <harold@mai.hallikainen.org> wrote:

> Thanks for the comment! It appears Honda did it differently than
> Indian. See the schematic at
> http://honda-elsinore.alp-sys.com/manuals/MT25074/OwnersManual74mt250.pdf=
#page=3D80
> .
>=20
> Thanks!
>=20
> Harold

Make sure that the magneto and coil polarities are correct.=20

I remember a colleague who had a Ducati motor cycle that was always
hard to start. He had many goes at the timing and eventually realised
the wire colours on either the magneto or the coil (I can't remember
which) were swapped from what the manual said they should be, but he
had bought it new and that was the way it had always been so that was
the way he kept it. It was also at one extreme of the timing adjustment
to get the spark correct. One day he got fed up and swapped the leads,
retimed it - it was now set up at the centre of adjustment range - and
it started a lot easier. It has something to do with the spark plug
preferring one polarity of spark to make the mixture ignite and also
the waveshape from the magneto at the time the points open producing a
healthier spark.
--=20
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