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xb9 no spark, stator, reg/rec wiring help

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bobaganoosh

Well-known member
Joined
Apr 17, 2010
Messages
808
So I havent been on here in a while but I could use some help. My 05 xb9 lightning has been sitting for 2 years. I messed up the wiring trying to clean up the wiring bundle behind the pulley cover. I was going to gut rid of the big foctory conectors and use smaller ones so I could run no pulley cover. any who I some how mixed some of the wires up and then it had no spark. I tried every combination of wires i could and could not get spark. I got a whole new wiring harnes put in and that was as far as I made it. got a new bike and lost interest in the buell.

Fast forward 2 years and I put a new stator in and just got the last piece of the puzzle the voltage regulator/rectifier in the mail today. turns out I got the wrong one off ebay. I assumed on from a 08 xb12r would work but they have different plugs. only 4 wires on this one. I need a 5 wire one.

My question is can I somehow use this one off the 12r? or does some one have a reg/rec laying around they could look at the wire routing for me? or if someone has one off a xb9 for sale ill buy it
 
Plugs on the bike
6599_20140609180517_L.jpg

Plugs on the xb12r reg/rec
6599_20140609180428_L.jpg

Plugs on my old reg/rec
6599_20140609180334_L.jpg

Those 3 wires just need to go to the stator, I just dont know which one goes where
 
It sounds to me, that you probably fried something(s) by swapping wires around. That is NOT the way tto get something electrical/electronic figured out. The service manuals have schematics in them....color codes and all.
 
Not sure what schematic tou're looking at. I understand if wires are black, it makes it more difficult. Schematic will still give you pin locations, etc.
 
I just looked on this site in the service manual. There is a nice diagram in there with the positions etc. I couldn't copy/paste it for some reason, but it's there.
 
I just looked at the manual again. the schematics show the 3 wires coming from the stator going into the regulator then the 2 wires coming out to the main harness. It doesn't show specific locations for each wire on the regulator. it shows the 3 from the stator going to the first 3 locations on the regulator. and the 2 going out of the regulator to the main harness as the last 2 locations. I know this isn't correct because my connector is still intact for the 2 wires going out of the regulator and they are the from the 3rd and 5th locations. 1 2 and 4 should be the stator plug.

I have the correct regulator coming in a day or 2 so hopefully that fixes the problem anyways.
 
I really don't see how something could fry just by the startor cranking it over. whats left to fry? the ecm? everything else works. fuel pump primes
 
I didn't study the schematics. But when you just start switching wires around to see what happens, the end result is rarely good. It isn't like a simple light bulb we're talking about here.
 
Hey man. Here's a schematic. But it won't answer all your questions.

IMG_20140612_184017_160.jpg


Look at the picture of the regulator. The top wire is the battery positive. Second one down is battery negative. The bottom 3 go to the stator. The orientation of those 3 wire does not matter. Connect them to the stator in any way you fancy. Important. My 04 XB doesn't match that picture in the relation of the actual wires.

Look at your Regulator the same relation as the one in the picture. ON MY BIKE (04 eb12r) this is how it is. Looking at it right now.

Top Wire- Battery ground
Second down- Stator
Third Down-Battery Positive
Fourth-Stator
Fifth-Stator

As long as you know for sure the battery + & -, and didnt loose teact of those....the other three don't matter.

The stator is 3 phase. Each of those legs generates an ac voltage. The regulator takes that 3 phase ac and converts it to single phase DC to charge your battery. Among other things like controlling voltage.

As for no spark, I believe it is a seperate problem and could be many things. Is the coil getting power and a signal from the ecm which gets a signal from the cam sensor? If you've been messing around with the wires in that area, make sure the cam sensor is wired correctly.

Also cover the basics and check your fuses. The fuse marked "key switch" supplies power to the Red/White at the Can sensor and VSS.

The ignition relay supplies power to pin 4 grey wire to power ignition coil. Check key on power at grey wire (middle) at ignition coil.

If all seems good test your ignition coil.



Hope that helps some. Peace.
 
awesome thanks for the info.

just checked fuses and all are good

moved all the relays around and didn't make any difference

checked the plug going to the coil, the center grey wire does have power when I turn the key.

I checked the other 2 wires and neither of them have power when I crank it over, not sure if its supposed too. I was just using a test light.

I guess next step is to check the coil, let me look that up
 
Hook up your test light between the center, and one outside terminal on the coil. One outside is for the front, the other outside is for the rear. It should flicker when you crank it. The ECM will ground the outside terminals completing the circuit and energizing the coil when its disposed to spark, and also light your test light.

If it don't flicker that means its not getting a signal. Again could be lots of things. But double check your cam sensor plug. Could be ecm, or bad ground somewhere.

If it does flicker, then everything is good to there. Leaving the coil, plug wires, plugs.

Good luck bro.
 
I also just checked the 2 wires that are going from the voltage regulator to charge the battery. this should be dc power, I used my test light and when I crank it over neither wire lights up my test light. I bought the regulator used as well as the stator but they both supposedly came off running bikes. whats the best way to see if I have ac power coming off the stator?
 
I would work on your no spark first. The bike will start and run with the stator disconnected. Just make sure the three wires coming off your stator are taped up and don't touch ground or each other.

One of the steps to check your stator is to unplug it and run the bike to test output.

Work the no start first.

But... the two wire harness going to your regulator, bike side connector has one red, one black. Touching your test light between those should light your test light as they are connected to your battery.
 
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