Clinician
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Posts: 5
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Joined: Aug 12, 2024 18:31:53 GMT -6
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No Spark Help!
by: bikerbryce - Oct 13, 2024 11:23:00 GMT -6
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Post by bikerbryce on Oct 13, 2024 11:23:00 GMT -6
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Clinician
Currently Offline
Posts: 5
Likes: 0
Joined: Aug 12, 2024 18:31:53 GMT -6
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No Spark Help!
by: bikerbryce - Aug 26, 2024 17:13:56 GMT -6
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Post by bikerbryce on Aug 26, 2024 17:13:56 GMT -6
Just bumping this, still can’t figure out the issue. Could it be the pickup?
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Clinician
Currently Offline
Posts: 5
Likes: 0
Joined: Aug 12, 2024 18:31:53 GMT -6
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No Spark Help!
by: bikerbryce - Aug 13, 2024 23:12:48 GMT -6
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Post by bikerbryce on Aug 13, 2024 23:12:48 GMT -6
I just did a little bit of research and it looks like mine are both AC cdi because they both have power supplied from the stator whereas DC cod has power taken directly from the battery and the stated just triggers the power to the coil.
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Clinician
Currently Offline
Posts: 5
Likes: 0
Joined: Aug 12, 2024 18:31:53 GMT -6
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No Spark Help!
by: bikerbryce - Aug 13, 2024 23:01:58 GMT -6
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Post by bikerbryce on Aug 13, 2024 23:01:58 GMT -6
I guess I should’ve clarified, the new bike is also a Gy6 and I tried both CDIs on the working Gy6 and both worked perfectly. I suppose it’s possible the reason the bike was abandoned was cause it had the wrong cdi but I feel like that’s unlikely, I’ll look into it though. I would guess it’s the coil connection or ground at the cdi but I added a new ground connection so now there’s only about 5ohms resistance from the ground at the cdi, that’s why I’m confused the ground at the coil has high resistance. The output power wire to the coil from the cdi is measuring only ~1vAC even with the new ground connection at the cdi even though the input wires from the stator are at the proper voltage readings. |
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Clinician
Currently Offline
Posts: 5
Likes: 0
Joined: Aug 12, 2024 18:31:53 GMT -6
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No Spark Help!
by: bikerbryce - Aug 12, 2024 18:39:46 GMT -6
via mobile
Post by bikerbryce on Aug 12, 2024 18:39:46 GMT -6
Ive got a Gy6 150 with no spark. The power wire from the stator measures ~40-60vAC when cranking, the trigger wire from stator measures .1vAC when cranking. The coil resistance is .1ohm and I tried the cdi on a working bike and the other bike started right up so it’s not the CDI. I think the issue is related to the wire from the CDI to the coil because when cranking I only get ~1vAC (both measured at coil and at the cdi) and it should be higher than 18vAC but I don’t understand how that could happen when the cdi works on a different bike. I also noticed that the green ground wire at the coil has about 120 ohms resistance to the negative terminal which is weird but I tried a jumper directly to the coil from the neg terminal with the same result. Any ideas what it could be? This is the guide I followed. Thanks in advance! www.buggydepot.com/tech-center/gy6-150cc-ignition-troubleshooting-guide-no-spark/ |
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