The real world stepped in and prevented some Honda work. I found some time to disassemble a nasty Denso speedometer that I got for cheap on Ebay. Not working, with a bouncing needle that wouldn't drop to zero and looking like it was submerged for a period of time, I figured what the heck, let's see if this thing has any life in it. I pulled it apart, soaked the guts with PB Blaster, cleaned and lubricated it and replaced the white surround because of a rust-through issue. Got it to work and hooked it up to my S90, checking with a GPS on my phone. Looks good to go.