Thorough as usual, Rob, and very clear pictures. So, if I'm interpreting correctly, the Type N module (standard on GXV120) will fit any Honda or chonda, but you have to tap the right hand hole to fit it to a GXV140. However the hole is already tapped on the GXV160. The Type A module (standard on GXV140 and GXV160) will fit any GXV140 or GXV160, but cannot be fitted to a GXV120. The chondas follow the same rules as the Hondas, for what will fit on each model.
Thanks for doing that - now the archives will show the differences and what to use where. The one question not answered yet, is whether the GXV120 module (i.e., the Type N) will work properly on a GXV140 or GXV160, and whether it would have to be fitted on the spacers, because of a difference in the flywheel?
There is probably a reason that Honda decided to fit only Capacitive Discharge Ignition (that is, Type A) modules to those larger engines, while continuing to fit the standard modules to the GXV120 (which was the first of the three models to be designed and produced). Conceivably the CDI module will work better than the standard one under some specific circumstances. Generally CDI works better than standard ignition if the spark plug is fouled, but works less well than standard ignition if the mixture is lean.
