Anyone got a wiring diagram for a 3100 unit.
Wire colours are
red
brown
black
blue
white
yellow
green.

I can't get the speedo to work?? or find my original diagram are there 2 wires for the speedo?? Or does the reed switch need a live to it and a feed back through the green to count the pulses.
I'm fecked if I can find one on the net that suits a 3100 unit.
As usual guys and galls thanks in advance.

http://www.acewell-meter.com/download.php

Any use ??

Been there done that. No specific wiring diagrams though for the 3100

i have a 3100H,
Wires are as follows
plug A black,brown,red - these conect to plugC gnd,clock-power,switch key
plug B Green,white Tese conect to speedo red,,white
yellow is for you rev counter

Hope this helps

Kj yes this is the way I had it wired but the speedo does not work??? magent and reed switch and wiring are all OK.

Mmm maybe I do need a new unit then

Hi There
As you may (or may not!) know I sell these. TBH it's very unusual to get anything go wrong with the actual head unit, are you sure you haven't got a faulty reed switch (I do stock them) or possibly the wiring could be damaged somewhere.
It is VERY important to have the magnet passing in line with the casting line in the plastic or some strange readings can result, only other thing I can think of is has the calibration been set to an extreme & it simply isn't going quick enough to measure a reading - typical wheel circumference is around the 1500 - 2300 area. HTH