Thanks! Well, it might work, if I could get it into that mode. When I press the reset (indicator stalk button) and turn on the ignition, I get a "UNIT" or a "WARN" display. The UNIT seems to set 12H or 24H, presumably for the clock, and the "WARN" cycles through three digits, initially set to 000. Assume it may have some un-documented speed warning function? But in any case, I haven't been able to get "SET PPU" to appear. If I could, it would be a simple matter to re-set it to get it closer it would seem...