OK, I have the cables routed correctly. The index mark on the cable drum/pulley was pointing to the "Lo" mark on the servo body, from when I plugged the servo unit in and turned on the ignition.

I have adjusted them (according to one of the posts on here) by disconnecting the TPS, turning the ignition on (pulley rotated to "Hi" mark), then adjusting the cables until the holes line up using a 6mm drill bit as a guide. I know this is the quick, imprecise way, but it'll do initially.

So, once the TPS has been reconnected, and the ignition turned on, what position should the cable drum/pulley be at? The index mark on the pulley is pointing just past the "hi" mark on the servo body. If I turn the throttle a few times, there is a faint hum from the servo motor (but no movement). Does this setup sound correct?

FYI, when I bought the bike, the previous owner had gutted the servo, rigged up a manual system of operating the powervalves through a cable off the carb throttle drum. The spare servo I had is off an MC18 (I think), and has a slighly different pulley/cable drum, both of which are different to the one pictured above.

I can't take it to a bike shop, as the nearest NSR workshops are over several hundred kilometers away, and Honda Australia refuse to provide information on grey import bikes.