> > How many cylinders? =A0Rember that only half fire in any one revolution=
, at
> > least if this is a two stroke gasoline engine.
>=20
> Not always true.
>=20
> The VW Bug engine is four stroke.
>=20
> My Ford triton engine uses a technique called "wasted spark" that
> fires every piston on both the compression and the exhaust strokes.
> It's also popular in aircraft, but I don't know if this applies to the
> bug engine in particular.

The 'wasted spark' trick was also common on 2 cylinder motor bikes. Both en=
ds of the high voltage winding were isolated from chassis, one end going to=
 one spark plug, the other end to the other spark plug, putting the two plu=
gs in series.
--=20
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--=20
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