A friend of mine asked me tonight whether it was possible to adapt the "universal" starter switch he bought to an old Honda mower. He gave them the switch he took out of the unit and the new one he bought, which is by MTC LLC, Cleveland, OH (both are five-connector switches). I couldn't find anything useful quickly on that site, so thought I'd ask here. The unit he bought is catalog # 798-00329, and also lists an OEM #725-0267A. Can this be compatible with the Honda ignition switch? He's not too concerned if he loses some ancillary functionality.

Hi,
In a word, no. this has an OEM number matching an old MTD number that has seen little use in years.
Peace,
Clarke