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Enduro Electrical & Wiring Lighting, Ignition, Wiring, Plugs, etc. |
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Thread Tools | Display Modes |
#11
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Easiest explanation is to think of a battery hookup like on a car. Red=positive terminal, feeds all power out to the vehicle. Black=negative, ground wire for all components. Connected to vehicle frame etc.
Your bike: Yellow=stator output, supplies all power to the bike (engine running). Green/yellow=ground wire to all components. Connected to frame and engine. If you use a voltmeter set to ohms you should get continuity from any green/yellow wire to ground. The ground is common to the frame and engine. Your ohms reading would be very low, less than 1 ohm, indicating a circuit. A high reading (megohms or infinity) indicates no connection. I can't say for sure about your bike, but it should have a ring terminal with a yellow/green wire bolted to one of the coil mounts, or somewhere else with bare metal on the frame. Maybe someone used a black wire in place of the yellow/green. IF the yellow/green is not connected to ground, maybe that's why your lights are flashing. There could be arcing going on. Please cut your harness cover open and follow the yellow/green wires and see where they go. Or push/pull the yellow/green wires back and forth in the cover and find out where they hook up. Somewhere along the way you need to find out where the yellow/green wiring is grounded. You will need to make the ground connection yourself if it's missing. It's the "other side of the circuit", nothing will work properly without it. So you have a grounded black wire? Follow it around and make sure it connects to a yellow/green wire somewhere. The black wire on your voltage regulator also connects to ground.
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2011 EC250E |
#12
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Quote:
Since the only 2 ground wires are 1 black With the coil and 1 black With the volt regulator, im guessing arcing is going on. Going to cut Thanks again!
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07` EC300SM. 09` KTM 250EXC. 70`CB350 |
#13
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Stator output measured at yellow stator wire and frame earth shows between 2,5-3v.
im guessing my stators quite dead.. whats the cheapest alternativ.?
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07` EC300SM. 09` KTM 250EXC. 70`CB350 |
#14
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Measuring voltage with your meter on the AC scale, regulator disconnected? At what RPM?
Stator wires only (not running, temperature must be 20*C or 68*F), what ohms readings do you get yellow to ground and then yellow to white? The GG manual says yellow to ground .67 ohms +/- 20%, yellow to white .16 ohms +/- 20% Also check the stator solder joints to make sure they look good. You need a flywheel puller M27 left hand thread. Did you for sure find that the yellow/green wires are grounded? Trailtech has a stator kit for KTM that might fit GG by changing the connectors. http://www.trailtech.net/stators-flywheels/sr-8312 Puller http://www.trailtech.net/stators-fly...ories/6300-p01
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2011 EC250E |
#15
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Quote:
- AC, regulator both disconnected and connected, in all RPMs. Between 2-3volts. Stator wires only (not running, temperature must be 20*C or 68*F), what ohms readings do you get yellow to ground and then yellow to white? The GG manual says yellow to ground .67 ohms +/- 20%, yellow to white .16 ohms +/- 20% -Did not check. Seen the volts be 2-3, it was quite clear it was the stator. Also check the stator solder joints to make sure they look good. You need a flywheel puller M27 left hand thread. Did you for sure find that the yellow/green wires are grounded? - Ive got the puller already, but its at another workshop. Im checking the solders, and ive checked the hole loom for errors. Also found a local workshop who possibly can re-do the stator
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07` EC300SM. 09` KTM 250EXC. 70`CB350 |
#16
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The only thing that seems strange is that you have lights flashing when the stator is delivering 3 VAC. If we take the flashes as AC peak voltages, I don't see how 3 volts can make anything light up. Three volts would normally only result in a tiny glow on a light bulb filament. Now if you had described the events as "lights barely flickering", maybe you are right.
There still may be something else going on. You didn't mention what you found on the yellow/green wires. Did they actually connect to your black ground wire?
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2011 EC250E |
#17
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Quote:
3VAC, taillight and front parklight, and light-chooser are blinking. Havent wired up main headlight for the last days, but its a good flickering there too. The flickering are good, not a tiny glow. The black ground wires is the one at the coil, and one at the volt regulator. There isnt any other ground wire. There are no yellow/green connecting to blacks. There is only the stator wire, who is all yellow, and connects to the coil.
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07` EC300SM. 09` KTM 250EXC. 70`CB350 |
#18
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This may sound silly, but how do you expect any of your lights to work if they aren't grounded?
Let's take for example your headlight bulb wires: blue (high), white (low), and green/yellow (ground). Yellow comes to your switch and out on blue or white. If the green/yellow is NOT connected to ground, there is no circuit to make the headlight work! Quote:
Get a copy of the GG wiring diagram and study it to get an idea of what the wiring actually does.
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2011 EC250E |
#19
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Quote:
I am going to check ohms and every wire and wiring for faults, but the bike starts good, and are driving Perfect, s? the missing ground wire(blue) is not going to affect the system in this way. For now, ive taken som Calls, and stators the big crapper. Found this; http://www.ebay.com/itm/Stator-GAS-G...fc9f11&vxp=mtr Guess it is crap or working alright? It seems to me that I am missing the Blue ground wire. Also, previous owner did ride the bike without a voltage regulator.
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07` EC300SM. 09` KTM 250EXC. 70`CB350 Last edited by stian; 08-19-2014 at 09:40 AM. |
#20
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The missing voltage regulator would not matter if no lights were connected. It looks like the older bikes used different wire colours than the newer bikes. The yellow/green wire that I refer to as ground, looks to be the blue wire on your bike. With that blue wire disconnected, your light bulbs aren't in the circuit. What happens when you hookup that ground? The flashing should at least stop.
Actual stator output is a different story. It is possible that your stator is bad. As long as the bottom end of the winding is grounded, you should be able to measure reasonable voltage ouput when testing from the yellow wire to ground (bike running). Keep at it, it's not rocket science.
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2011 EC250E |
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