CDI Wiring By son10s (Read 13,631 times)

[son10s]

My bike just clicks the relay when I press the start button. It tries to kick--once--then has no spark. I have been tracing all the wires and checking connections, such as they are.. I replaced the spark plug and ignition coil and the battery is load-tested excellent. The starter is only a few months old and worked fine, until it didn't. It does spin off the bike with jumper cables. The relay sparks with a screwdriver across it and does not try to start..I saw no evidence of a short anywhere but the previous owner or mechanic spliced all the grounds and many other wires, which are nearly all 24 gauge. Have traced out the wiring and now I am down to this: I have a 5-wire CDI, red/black and blue/white coming from stator-- black/white and black in a coupler on CDI end -- the black/white and a ground wire (that is not really needed, the coil grounds itself), and leads to point where all the black grounds split, on the coupler ignition coil side--and a green wire. The last mechanic removed the alarm and spliced all the CDI wires to a 9-pin connector that leads nowhere. A friend was helping me one day and now I see that the green wire is connected to a dark green wire, (not sure if he did it or if that is the way it was originally) which in turn is going to the 9-pin, and when I trace this out, it goes into a coupler with a black wire connecting to a black/white and black wire and comes from the fat sleeve in the handlebars I assume is the kill switch. I would naturally think the wire leading to the kill switch should be connected to the CDI but I'm not used to seeing a green to dark green connection and besides, it does not make the bike go.. I posted a short clip on Photobucket but my camera chose this moment to malfunction and will not take still pictures now. Frankly, it's all I can do to troubleshoot the bike, let alone the camera! Please help!

[alleyoop]

Here are pictures of the wireing going to the CDI and what they are:
Alleyoop

[son10s]

mine looks similar to this:

.superscooterparts.com/product_images/N-AT-01043hr.jpg" rel="nofollow" target="_blank">.superscooterparts.com/product_images/N-AT-01043hr.jpg

[alleyoop]

WOW!! I never saw a CDI like that before. What scoot do you have again I will try and find a diagram for the scoot. Maybe if someone else looks at it they can help as well.
Alleyoop

[terrilee]

wow me 2 alley

i havent seen 1000's like u but still

[son10s]

Actually, here is the exact style, although the model number is a little different:
.martinracingdealer.com/SPD/qj-97701b20t000--80000EE8-1236984284.jsp" rel="nofollow" target="_blank">.martinracingdealer.com/SPD/qj-97701b20t000--80000EE8-1236984284.jsp
I have a 2007 Yamati Eurostrada RX-50. Apparently, when Powersports Factory got sued they took every trace of them off the internet, lol! It's a two-stroke and though I have searched high and low, I have not found a manual or specs to match up.
As you can see, with this 5-wire, there is not a connection for BOTH the ignition wire and kill switch. There is the ignition coil, the 2 stator wires, a coupler with black/white and black, and a green wire that matches the color going the the ignition, but I suspect the DARK green wire, which goes to the kill switch, is supposed to be connected somewhere because when the guy removed the alarm, he added a splice to that 9-pin connector..

[alleyoop]

Is this your scoot:
Alleyoop

[alleyoop]

Well maybe JR can help he is a WEZZZZZZZZ on electrics on the scoots. I will email him to have a look at your situation.
Normally around this time he is making supper for the kids after he picked them up from school. So it will be a little later that he will come on.
Alleyoop

[son10s]

Wow! Yes, that's it! I have found Stradas but they always turned out to be GY6. This says two-stroke right on it! Dare I get excited?

[son10s]

That is wonderful! I will keep checking in at commercials.

[alleyoop]

Yea here it is with the specs on it FAST LITTLE BUGGER YOU HAVE THERE ;D
Alleyoop
.scooterpartsplace.com/strada-rx-50-50cc-gas-scooter.aspx" rel="nofollow" target="_blank">.scooterpartsplace.com/strada-rx-50-50cc-gas-scooter.aspx

[JR]

Ok first welcome to the forum. Now this has just hit me and I've got someone that I'm working with in North Carolina on a complete wiring harness install. We've got it running and going through the fine details now.

Now I've not worked with the 2-strokes much.......but I've got several diagrams of them and may also run down a diagram on this one plus I need to take notes on all of your information you gave earlier.

I'm also finishing up some homework with my grandson so it's going to be a little later before I get back and I WILL GET BACK!

Don't give up on me and I'll holler back later.

JR

[tvnacman]

sons , I can help you but I need your help . How many wires is that cdi , is it 5 ? do you have a meter ? I'm sure sprocket can help with this . I'm thinking changeing the cdi to what we use in the GY6 . Sons you will need a voltage meter to trouble shoot do you have one ?

John

[son10s]

Wow! Thanks! Here is the actual model CDI I have:
.scooterpartsplace.com/50cc-two-stroke-cdi-unit.aspx" rel="nofollow" target="_blank">.scooterpartsplace.com/50cc-two-stroke-cdi-unit.aspx
The site doesn't offer any repair info except they offer mobile service.. Sure hope someone on this site can locate a repair manual for me..

[son10s]

LOL! You are very much in demand, I see! I will keep the light on for ya