You should have 40 to 80 volts AC from the black/red wire (AC Ignition Power) to the green wire (ground) out of the stator while cranking the engine.

You should have 0.2 to 0.4 volts AC from the blue/white wire (Timing Trigger) to the green wire while cranking the engine.

The yellow wires are the battery charge winding and have nothing to do with spark.

 

ITS RUNNING cheers for the help it was a dodgy earth lol just need regulator wiring in as mine is 5 wire and my loom is 4 wire thanks alex

 

Five wire regulators have an auxillary 12 volt output to run the auto choke (bystarter valve) or cooling fans. The extra connection will not be used in your case unless you have either of these things.

Usually these regulators have pigtail wires hangin out of them which go to a connector. What are the colors of these wires? Also what are the wire colors in your 4 pin wire loom connector?

Maybe the wire colors are all that is needed to figure out how the wire it up. But if not there are other tests we can do with a meter to figure it out the regulator pins in more detail.

 

Hi my regulator has red yellow black green and pink where as the new loom has white yellow red and green cheers

 

I was hoping the regulator wires would use standard colors, but they didn't.

Your loom wire colors are standard:

1) red = +12 volts
2) Green = ground
3) White = one side of the AC battery charge winding from the stator
4) Yellow = the other side of the AC battery charge winding from the stator

So we need to find out what wires are what going into your regulator. Check out this thread:

http://forums.atvconnection.com/kids...sport-atv.html

With an ohmmeter set to diode junction measuring mode you can probe into the regulator and look for the bridge rectifier inside. You should be able to identify the two AC battery charge power wires and the ground wire for sure. The other two I'm not so sure, but that gives only two posibilities to try, instead of randomly guessing (which would be five factorial, or 120 wiring possibilities).