I have to say I still haven't tested either of the ones I've got because the Rally is still on the bench and I've only just finished modifying my headset for the px one.
Basically you have 3 plugs out of the headset. The first is for the cylinder head temp gauge. The sensor fits under the spark plug and doesn't seem to have the same issues this causes on the KOSO ones I've used on Lambrettas. The cable runs through the frame and up into the headset. This is the most difficult part of wiring it up.
This then plugs into the jack plug from the speedo.
You then have a plug for a button which switches you through 4 set up screens and also changes the screen once set up for run time, miles travelled, and total milage etc. This is on a fairly long lead which allows you to mount it in the glove box if required.
The last plug has three wires. 1 is earth,one is power for back light etc and one is for picking up revs. On bikes with only AC these wires can be joined together and linked to unswitched lights power.
Bikes with a battery can use DC to power the back light and the rest of the speedo functions when you switch on the ignition.
So thats it. The speedo by the way may not be as inaccurate as it may first seem. The data you enter is the speedo drive ratio(SIP give a chart with all the different hubs) and the circumferance of your tyre measured by you. The speedo then knows that for every turn of the cable the wheel travels X distance so should act just like a sensor on say a trailtech.
The anologue rev counter is cleverly designed to look like an anologue speedo and the speed is diplayed digitally.
Heres some pictures of my headset modified to take the speedo and then wired to a car battery to show the display.........
I think you'll agree apart from my rather slapdash finishing it does look sexual. I'll have both working next week so will report back then on how I've got on.
