Having reached that stage in the rebuild, guess what I forgot to put in the ECU grey wire
I have three 100 ohm resistors (10W, 7W and 0.6W). Which one would be most suitable? or am I thinking too hard and it doesn't matter at all....

it depends on the voltage you aply, and the minimal currtent flow needed for the ecu...
(or his components)

Think the o,6 watt is enough..

what does it where is the grey line for?

Tks

Any 100 ohm resistor will do the job. It is to give the ECU a 9volt signal

[Edited on 1:7:05 by Mk-Ninja]

As Ninja said, it's to reduce the voltage to the ECU from 12V down to 9V.
I started with the 0.6W and it's been idling for a good 15 mins now. The resistor doesn't feel hot or anything.
Cheers guys

I'm a happy bunny now with a noisy car :-)

where is the gray lead for??

Tks

it goes to the ecu. I have always wondered why it needs a 9v feed, as it doesnt on the bike. Can anyone throw some light on this? cheers

what you say is the thread about..

but its because they change an sensor
and are fooling the mcu that the sensor is present

but what sensor

thats the q

Tks

Its part of the bikes anti theft device, theres a 100ohm resistor built into the ignition barrel, so if you try to bypass it the bike wont start because the ECU is getting 12v not the 9v its looking for. And its the grey wire that needs that signal.

HTH Gordon