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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Diy Cdi
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[QUOTE="cicone, post: 836709, member: 46919"] CDI Update---Just ordered parts yesterday from Mouser and expect by Friday. Jag's notes on the subject appear to be very accurrate. He has a '89 model. There was a minor difference on the circuitboard with my '90 edition. The resistor which he refers to as the "pull down" is a 15 ohm 1/2 watt on my bike---not a 16 ohm. I also was not able to procure a 1.7K thermistor anywhere, so I'll have to try using the 1K in series w/680 ohm resistor as he suggests. Also ordered 2K thermistors to try w/22K resistor, which Jag also suggests. If you look at my CDI photo, you'll see 5 diodes on the board. Jaguar suggests replacing them all w/1A 400v. I've decided to replace the 3 black/blue diodes normal ones of that value. The large black diode located just left of the SCR will be replaced with a 3A 1000v since it pulses current to the ignition coil(for reliability). Also upgraded the rating on the 4.7 25v cap to 50v for the same reason. The little red diode on the other side of the board appears to be of the small signal type and is encased in glass, not plastic. That will be replaced with a 1A 400v of the smaller variety. Will try to make a couple prototypes and test this weekend. Awaiting some technical assistance from a major player in the auto CDI arena---since they don't make motorcycle CDI's(yet, anyway), they have been more than receptive on technical issues. :cool: If anyone wants a parts list, email me and I'll forward it. BTW, there's only about $5 worth of electronics on the board---no where near the $225 they want for a replacement. I ordered a ton 'o stuff so I could experiment and always have at least two good boards---total cost $10.36 plus shipping. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Diy Cdi
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