Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
A UK K1 is supposed to have the pass switch Ted. It's the USA version that doesn't. The extra wires are normally for the US market, buzzer wires etc. Sounds like you have the same switchgear as the 550, high/low on the switch?
Orange with white stripe and blue with white stripe would be front funning lights and not used, would need to know all the colours to guess the other one not there
Looms are the same Ted, switches are different, front blinkers and no front sidelight
It can be confusing with differences between US UK Europe specs, the type with hi/lo on left is more like 550 and means the rh has to have off/park/headlamp positions. There will be differences from the wiring diagram i sent you, I find its easier to draw out the separate circuits to make it easier.