I was going to check the timing with a timing light suebutcher but at the moment I just fit the coil bracket with the bolt in
the middle of the elongated slot and see how it runs then see if the motor runs better with the bolt out of centre about 1.5 mm in the
advanced position and then try out of centre 1.5 mm in the retarded position and leave the coil in the spot that runs best.
In my image of the Honda coil I have 1mm advance on the coil.
I would have thought original GXV160 coils would be a bit hard to come by Max, the motors last so long.
Depends where you look Norm ,the GCV160 came out in 1997 and the GXV160 came out in 2002 so there are a lot of
worn out motors out there.
I see people throw them away when the mowers base rusts out.
Cheers
Max.