7 Wire R/R - White Wire Voltage By jstluise (Read 711 times)

[jstluise]

I'm just finishing up my 11 pole, 7 wire R/R upgrade and everything is coming together nicely and working good. Started up and ran great on the first go, with a nice regulated voltage at the battery.

I do have a question about the white wire, which goes to the auto bystarter (enricher). From what I read it should be around 10.8 VDC, which it was....but then it dropped down around 8.5-9 VDC after the scoot ran for a while.

I wouldn't be concerned, but I plan on using the white wire to activate a RIB relay for my headlight circuit, which required 10-30VDC. I'm afraid the voltage may be too low...

I'm going to do some more testing, but just wanted to put this out there. Should the white wire voltage fluctuate this much?

[JR]

Just like any stator it'll be higher at a higher RPM. Was that voltage at idle? Even 8.5 volts should activate that relay.

Also got to remember the autochoke does put a load on it also. You can put the autochoke on the black wire from the igniton if you want.

JR

[justbuggin2]

it will be ok i have done the same upgrade on my bike and with the relay it works great i used an auto style relay that is 12v 30amp

[jstluise]

Sounds good! I didn't think it would be too big of a deal, just wanted to check. JR, those numbers I gave were at idle; I forgot to see how it responded to varying RPM. It could be I just checked it before the RPMs dropped down after the startup.

I'll keep the auto choke on the white wire. It seemed to do the job just fine, the engine settled down to a nice idle.

Best part of this upgrade is how steady the charging voltage is...it was sitting at around 14.2 VDC is wouldn't vary at any RPM! The battery was still charging so it may be more, I'll keep an eye on it.

[tvnacman]

Sounds like things are settling just fine.

John

[jstluise]

Well I believe I am finished with the conversion and everything is looking great! Wiring the white wire up to the autochoke + headlight relay worked just fine. I learned a couple things about the white wire voltage after I did some testing:

1) The voltage on the white wire is inversely proportional to the RPM. ie A higher RPM produces a lower voltage, A lower RPM produces a higher voltage.

2) White wire voltage increases as the electrical load on the system (not the load on the white wire) increases. For example, the white wire voltage with the headlights on will be higher than when the headlights are off.

So, my initial concern was when I has no load on the system (before I had everything wired up). I was seeing 5-8 volts which made me nervous. But, after getting everything wired up I was seeing voltages closer to 10 and up to 12 depending on the loading. Regardless, the autochoke is working fine and the white wire has no problem tripping my headlight relay.

[JR]

Good news my friend! Don't you just love it when a plan comes together!

JR

[tvnacman]

Sept 9, 2012 15:50:07 GMT -6 jstluise said:

Well I believe I am finished with the conversion and everything is looking great! Wiring the white wire up to the autochoke + headlight relay worked just fine. I learned a couple things about the white wire voltage after I did some testing:

1) The voltage on the white wire is inversely proportional to the RPM. ie A higher RPM produces a lower voltage, A lower RPM produces a higher voltage.

2) White wire voltage increases as the electrical load on the system (not the load on the white wire) increases. For example, the white wire voltage with the headlights on will be higher than when the headlights are off.

So, my initial concern was when I has no load on the system (before I had everything wired up). I was seeing 5-8 volts which made me nervous. But, after getting everything wired up I was seeing voltages closer to 10 and up to 12 depending on the loading. Regardless, the autochoke is working fine and the white wire has no problem tripping my headlight relay.

This is a post I like to see , this is gratifaction for effort !!!!!!!!!!!

John