loudhvx wrote: On a Kz with points and one coil, I think you would notice if the points cam were installed backward. When trying to time the points, the timing marks would be too far off (180 degrees off) to time the points correctly. That would have raised questions before trying to start it.
Whereas, on the bikes with two coils, there are two sets of timing marks so it would be easy to confuse one set with the other.
Or, on bikes with electronic ignition, it's easy to flip the rotor since you are not checking the rotor with anything.
You wouldn't believe it, but, I did eventually notice lol
And it taught me to look at the system as a whole, not just when the timing marks roll on past.
The mech advancer lobe was 180 out, points cam rolls around once and the same timing marks go past twice on the crank, Statically timed on wrong stroke with cam lobe 180 out it was never going to fire.
When I popped the valve covers and watched valves in motion in relation to spark timing I said a few choice words, undid 4 screws, fixed the problem and reassembled.
Props to RustToRedemption.