UH-OH!!!! Ignition coil on YZ 450
Posted April 19, 2011 - 07:05 PM
Any inspiration? Or am I stuck with buying a new one? And did I cause it to go out by not having enough grounds hooked up? Or could their be another problem in the wiring harness of the bike??
I looked at the manual's for both YZ and WR and their resistance on the coil is the same so are the coils the same unit even though their part number is different?
Posted April 20, 2011 - 07:33 AM
Every other electrical component checks out other than the regulator I haven't checked input and output voltage.
Posted April 20, 2011 - 08:38 AM
Posted April 20, 2011 - 02:37 PM
If the resistance is wrong, I'd try a new WR coil. The output signal to the coil from the WR CDI could be a different voltage, but I don't know.
That's not good!! .
Ok and my dealer said that the coil on the wr, YZ, and yzf are the same so must have sent too much power through it and burned it up. Thanks gray!! Hopefully this is the last screw up on my part during this specific project...
Posted April 25, 2011 - 05:51 PM
Posted April 25, 2011 - 08:28 PM
Posted April 26, 2011 - 03:20 PM
Sorry for being such a pain as I'm learning to understand these systems. I have a few more questions.
1. At the moment my lighting coil in my stator doesn't have an acceptable reading on a ohm meter I'm guessing that it is bad? Can you rewind these and fix them or do I need to buy a new one?
2. If I do the stator mod as specified in http://www.bajadesig... Stator Mod.pdf instructions this makes the yellow wire the ground wire correct??
So if that is the case: 3 which wiring diagram for rectifier's/ regulator's do I make my harness correspond with https://www.bajadesi...- Universal.pdf going off of this link? If I delete the ground within the stator (which the stator mod does if I'm correct) then I'd need to go with the upper one correct?. Make a ground from the regulator to the chassis and make a ground from the Battery to the chassis and same with the lights?
4: If that is the case is the polarity of how they are hooked to the regulator an issue where the wires coming out of the Baja Designs regulator are two yellows a black and a red. The black is ground and the red is output power out so on the yellow wires does it matter which of my wires off of the stator go to which? (on this one I'm assuming not)
5: if I wire up my wiring as shown in the https://www.bajadesi...- Universal.pdf upper diagram everything should be fine and dandy and I'll be ready to go?
Posted April 26, 2011 - 06:48 PM
You should now have a total of 4 wires exiting the stator assembly. One pair is the red and white pair that runs from the pickup, or trigger coil, and these must not be modified. The other pair are the yellow wire, and the white that runs to the original rectifier. These two wires are the two ends of your single AC generator circuit.
IMO, neither of these should be grounded. I'll explain: If you ground the yellow (or the white, it doesn't matter) wire from the stator coils, you have to wire the entire rest of the motorcycle as shown in the second diagram. What's wrong with that? It complicates everything too much. AC and DC currents cannot share a common conductor or they become mixed, and bad things happen. Notice that the AC side (from the stator) is the only place that gets grounded. The AC current then flows in a loop from stator to rectifier to ground, and back to the stator, reversing directions constantly as the polarity changes. All of the other DC stuff, the lights the battery, the CDI, everything DC, has to be wired in a loop and can no longer use the frame as a ground anywhere, because doing so will pump AC into the battery.
Now let's look at the top diagram. In this one, we run two wires up from the stator to the rectifier without allowing them to ground anywhere. Then, anything DC can be grounded to the frame in the conventional manner as long as the battery is, and it will all work just fine. Much simpler, if you ask me.
So, your questions in order:
- If you have continuity without a short, you will probably be OK, but you can have Ricky Stator rewind it for higher output, too.
- Maybe, it depends (see above)
- Deleting the ground within the stator doesn't bear on which diagram you use, it's how you connect the stator to the rectifier (see above)
- The two yellows are AC. Which ever way you hook it up it's right half the time (doesn't matter)
- Yes, the top diagram is my recommendation.
Posted April 27, 2011 - 06:56 AM
you can have Ricky Stator rewind it for higher output
No one does a re-wind for the WR (not that it cant be done). Both Ricky Stator and Trail Tech sell an after market Stator good for 100 watts which is more than enough for 2 hids
If you want more info on WR stators read this thread:
Posted April 28, 2011 - 06:03 AM
Don't use the 20k setting unless your trying to measure resistances higher than the setting lower than it.
Posted May 01, 2011 - 10:01 AM
BTW they said that they could rewind it, but for the extra 25 bucks why not have a higher output??
Since the stator comes prewired with the regulator that takes out all of the guessing on my part I'll just hook my lighting into it and away I go!!!
Thanks for the help.
Posted May 06, 2011 - 12:38 PM
note to gray: I have ran the wiring as you suggested. I'm starting to get frustrated with this project.
here is the list of my troubles and what I've done so far.
I couldn't get it to start so I pulled my coil off and it had spark, the light was lighting up and everything seemed good. stuck it back in and cranked it over a million times (it seemed like it) and still no luck. So I started testing things. I pulled the coil off and tested it like the manual show's it was way below the proper numbers. Setting it aside I checked out my stator per the manual's instructions and it was bad too. So now I have replaced both of those and I'm still not getting spark. I unhooked the kill switch, and I have tried the main ign switch both on, off, plugged in, and unplugged. Nothing. Not sure but I'm guessing that it is the CDI unit.
What are some other things that I should look at??
In the beginning even after my ign coil tested bad, I had a little spark. now I have nothing!!!
Posted May 06, 2011 - 02:28 PM
New ricky stator WR 450 stator,
New ricky stator regulator,
New Yamaha IGN coil,
New spark plug,
I just put all of this new stuff on the bike, and now nothing works.
Besides the lights I was kicking it over and my roommate said he could see the light lighting up.
I have the baja designs battery, before this it's bee sitting for several years... I guess it could be bad. But I should be able to get the bike to start shouldn't I?
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