You guys are a crackup, actually.
Naturally I take that as a compliment.
You know those three marks on your stock flywheel that are separated by 5 degrees each?
Hmm, you lost me here.
I remember the flywheel more like have a looong, strip spanning 45° crank degrees, that is presumed
to create some pulse 45° before TDC and the reverse pulse at 0° TDC inside the pickup coil.
The former is only relevant when the engine is actually running, eabling the CDI to caclulate any position
between 45° BTDC and TDC as desired time to ignite.
The latter being the hardcoded ignition timing for "not yet really running" engine speeds, e.g. during starting.
Igniting at 0° BTDC guarantees, that the engine cannot kick back, even when kicked with ridiculously low effort.
the '03 flywheel looked looked roughly like this:
but it's a very long time ago that I was down there.
(On my late XT600 I made frequent visits to the coils to solder them back together, never been down there on my WRs)
Edited by WRF-Rowdy, June 17, 2015 - 04:31 AM.