12-23-2014, 08:43 AM | #1 |
Join Date: Dec 2014
Posts: 7
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What might be causing this
Hey guys another wd250 baja question. I cant get a spark so ive been testing and at the stator the 3 white wires are producing about 7.5 volts between each one as i change them....is this correct this at cranking speed? Also i tested the ignition wire from cdi to coil it was producing rather erratic volts sometimes as high as 93 volts some only crank out 10 volts and so on...is there a steady flow of volts i should see going into coil and what should they be and what is theclassic problem if it isn right.
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12-23-2014, 10:24 AM | #2 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Before we go that far, what is the actual symptom that you're experiencing?
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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12-23-2014, 11:17 AM | #3 |
Join Date: Dec 2014
Posts: 7
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hi since i bought this atv its never had a spark my friend gave up on it so i took over. i couldnt rely find any proper details about it so i searched for a typical average for electrical values.these are what i have
blue/white - green/white pick up coil not sure which way its read 0.2 or 2.0 ohms then the three white wires tested between each was a steady 1.4 and nothing to ground. the primary windings 4.5 ohms the secondary was 13.6 ohms when i tested ac volts at stator across the three whites in turn this is what it produced at cranking speed on electric start every reading was a steady 7.1 volts is this right. It gets even stranger as i put tester across the cdi to coil wire as i cranked it i had readings from 10 to 95 volts it peaked at but i cant see this unstable output to be right surely. what would you say |
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12-24-2014, 11:20 AM | #4 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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A meter is tough to read on the coil input side. Rather than a meter, I'd try a test light. Hold the probe on the positive wire that feeds the coil, and clip the ground wire to a good ground. Does it light up when you hit the starter button?
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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12-24-2014, 03:19 PM | #5 |
Join Date: Dec 2014
Posts: 7
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the biggest problem im having is actually finding which pin is thye 12v+ into cdi cause i have blue/white green/white which we know are pulsar, it leaves black/red black on its own and black/white.would it be posibble for the black/white to be the one to feed the coil off the kill system and the black/red be power input. as it doesnt like it if i substitute the black/white for a power into the cdi it blows fuses
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12-25-2014, 12:06 PM | #6 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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I took this from your other thread:
Can you ask him for the pinout of the CDI?
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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