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Enduro Electrical & Wiring Lighting, Ignition, Wiring, Plugs, etc.


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  #1  
Old 07-23-2016, 11:05 AM
5valve 5valve is offline
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Default dead CDI (maybe)

Started loosing spark, while in the bush.
Flexing HT cable, checking sparkplug, all got flawless, idling, acc, revving. Did the whole training and got home.

Last ride, same story, 5 minutes after startup. When it cut, it did completely.
Pushed home..
Since, 've sanded coil contacts, tested other coil from moped, tested HT cable, cap and sparkplug resistance. Spark returned, lets ride, but it stalled again, and no spark since.

Lighting works.

So, beside pickup coil, stator and wiring loom there is an option that CDI gave up.

I read that suzuki 125 CDI's fit, but do RM 250s also fit? I can get a hand on '06 cdi, or try fitting mine on this bike, just to check if suzy gives the spark with my CDI.

I also have no reference values to measure electronics on this bike, like real workshop manual. It's not downloadable from parent side.


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Old 07-23-2016, 11:23 AM
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dANbOT dANbOT is offline
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I don't want to throw you off your course on this, but I had similar issues recently on my 2014. This may or may not apply.
In the end what fixed it was tightening the CDI connector pins. I had to replace one that I squished too far accidently while trying to make the fit tighter. It produced some strange symptoms including intermittent spark.
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Old 07-23-2016, 11:26 AM
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Here's my thread
http://www.gasgasrider.org/forum/showthread.php?t=21524
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Old 07-23-2016, 01:22 PM
5valve 5valve is offline
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Ok, so you removed all fittings from the wire connector, that attaches to CDI, and you gave them a little squeeze, for better contact with CDI pins.
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Old 07-23-2016, 05:49 PM
gasgasxc gasgasxc is offline
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Should be able to test the cdi with a voltmeter.
somebody has those numbers somewhere.
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Old 07-23-2016, 09:34 PM
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Quote:
Originally Posted by 5valve View Post
Ok, so you removed all fittings from the wire connector, that attaches to CDI, and you gave them a little squeeze, for better contact with CDI pins.
Correct, I had connectivity problems with 2 pins. The first was the CDI power supply, the second was from the pickup coil.
Use caution if you do play wit the connector / pins, they are quite fragile. I ended up damaging one, and had to borrow a replacement from the dual ign map wiring.
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Old 07-24-2016, 10:17 PM
hoodlatch hoodlatch is offline
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What year is your bike? I have an one from my '05 250xc I could send you to test...
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Old 07-26-2016, 08:14 AM
imsimon imsimon is offline
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I had a similar prob that turned out to be a problem with the kill switch! cleaned it all up, works fine now!
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Old 07-28-2016, 12:48 PM
5valve 5valve is offline
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Thanks guys, bike as per signaure.

Tested CDI in suzuki rm 125, working, so it showed I had wiring problem.

Had no time to ride, but got consistent spark, by brake cleaning and blow drying both connectors and removing the seal.

It seems like silicone seal had increased in size or lost its tightness, not allowing the connector to be pressed in fuly, even though the click engaged.
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Old 07-30-2016, 03:44 AM
5valve 5valve is offline
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Well, I was wrong.
After 7klms transfer to local track, not even finished warmup lap, doing first bigger rev and it cut out again, had to bo towed home.

I'd really like to get some values to measure all components, and I'll test all the wiring, which looks like a partial mess.
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