CDI replacement question By genseeker (Read 3,706 times)

[Alleyoop]

Well not to get on your case or anything but WHY did the fuse blow in the first place and your friend replaced it with one that lights up when blown? If the fuse blows that means something was connected wrong or the battery when being connected was connected wrong and blew the fuse which also could blow the CDI and the Regular/Rectifier.

But If you turn the key on and nothing comes on then you have to test the wire with the fuse at the ignition switch.

The CDI has nothing to do with feeding juice to anything BUT THE COIL to fire the PLUG that is all the CDI does. The R/R once the motor starts charges your battery and feed voltage for most of your lights.

With the key on when you squeeze the brakes the STOPLIGHTS should come on also the horn should work and the TURN SIGNALS should work. So do any of those work?

[genseeker]

The fuse that originally blew was one of the tube fuses and it blew after some rough surface riding due to weather. I ended up walking my scoot about a block before I could get a hold of anyone to pick me & it up. My friend asked at the parts store about changing from the tube fuse and they sold him a blade fuse holder and fuses which happened to be the "light when blown kind". Course they charge over $5 for a pair of them vs just under $5 for a pack of 10 standard blade fuses. I had a choice to make that caused the fuse to blow - get hit by a car traveling the wrong way in my lane or go off-road with the scoot - I chose off road and the bouncing not only broke the fuse, I lost my low beam filament in my headlight as well.

I had mentioned earlier that I found my stoplight bulb was bad, it was the one that came with the scoot so I figure it was just cheap to only last about 15 months. Fuel gauge has never worked - tank part has been changed twice so has to be a defect in the cluster. I didn't think to check the horn or the turn signals and looking at my headlight, it appears the low beam is again blown. The shops around here say they sell the headlights in multiples because they blow the low beam so easily due to vibrations and rough roads we have around here.

What I do know:
1. With my CDI installed, my scoot will not start.
2. With the CDI off my son's scoot installed, my scoot will start.
3. My scoot won't start with my son's battery unless his CDI is installed as well.
4. My battery works just fine in my son's scoot, if his CDI is installed.
5. The last 4 or 5 times prior to the no-start, I had to basically prime it by kicking it over. It didn't have to start with the kick start but it acted like it didn't have enough power to start unless you kicked it over. I don't know if my wording makes sense. If I kicked it 2X, I could then electric start with no trouble.
6. When the no start happened, it had sat overnight after being ridden for about 30 min when I left my brother's house to come home. Ran fine coming home, then wouldn't start at all the next morning. Had sat about 12 hours at that point

[tvnacman]

genseeker Alleyoop
Just for reference

John

[Alleyoop]

What I do know:
1. With my CDI installed, neither my scoot nor my son's scoot will start.
2. With the CDI off my son's scoot installed, both scoots will start.
3. My scoot won't start with my son's battery unless his CDI is installed as well.
4. My battery works just fine in my son's scoot, if his CDI is installed.
5. The last 4 or 5 times prior to the no-start, I had to basically prime it by kicking it over. It didn't have to start with the kick start but it acted like it didn't have enough power to start unless you kicked it over. I don't know if my wording makes sense. If I kicked it 2X, I could then electric start with no trouble.
6. I have not changed the coil on the two scoots since my CDI will not start my son's scoot. Logically, it seems to me the not starting has to be related to the CDI and/or coil since neither scoot starts with my CDI installed but both start fine with my son's CDI installed.

From what you just said The CDI THAT WORKS IS A DC CDI and NOT a AC CDI. If your CDI only works with a GOOD BATTERY that means that the CDI NEEDS 12VOLT POWER FROM A GOOD BATTERY.
So to verify that here is what you do.

Check the CDI THAT WORKS on whichever scoot it is CURRENTLY ON.

Either use a 12v light tester or a multi meter and TURN THE KEY ON and CHECK THE BOTTOM WIRE on the TWO PLUG ON THE CDI. If I am right it will REGISTER 12V with the Multi Meter and or the LIGHT will come on with the 12v light tester.

Also take a picture of the CDI that WORKS.
Alleyoop

[genseeker]

I think you misunderstood my last post. Using the CDI off my son's scoot, I can start either scoot, with either battery. Using my CDI, neither scoot will start, regardless of which battery I use. I have no multimeter or test light myself and the only person I know with one is out of town for the holiday.

[genseeker]

Sept 7, 2015 5:52:29 GMT -6 tvnacman said:

genseeker Alleyoop
Just for reference

John

I still have enough gift balance to afford that one. Would my stock coil work with it? If not, would the coil in the set I ordered work with it?

[tvnacman]

Sept 7, 2015 13:52:54 GMT -6 genseeker said:

Sept 7, 2015 5:52:29 GMT -6 tvnacman said:

genseeker Alleyoop
Just for reference

John

I still have enough gift balance to afford that one. Would my stock coil work with it? If not, would the coil in the set I ordered work with it?

being you burnt 3 out so far I would like to know for sure if its ac or dc so you order the correct one. If the coils you have work it will work with them.

John

[Alleyoop]

Ok do this start the scoot and disconnect the battery if it keeps running you have a AC CDI if it kills the motor you have a DC system. That will let JOHN(TVANCMAN) know which CDI you need.
Alleyoop

P.S.
I would think burning out CDI's would be caused by putting in AC CDI and powering it by constant 12volts from the battery would burn out the AC CDI.

[tvnacman]

Sept 7, 2015 14:21:39 GMT -6 Alleyoop said:

Ok do this start the scoot and disconnect the battery if it keeps running you have a AC CDI if it kills the motor you have a DC system. That will let JOHN(TVANCMAN) know which CDI you need.
Alleyoop

P.S.
I would think burning out CDI's would be caused by putting in AC CDI and powering it by constant 12volts from the battery would burn out the AC CDI.

this is a good point, I would rather wait for a test light or meter and leave nothing to chance.
as far as running it then disconnecting the battery if the charging system is strong I suspect it might continue to run. But may not kick start.

John

[genseeker]

I never said the scoot has burned out 3 CDI, it has only lost one CDI. It's the fuel sending unit that has been replaced 2x but it didn't work when I got the scoot. The place I bought it tried replacing it and when the new unit didn't fix it, they tried replacing it again. It still didn't work so it has to be in the gauge cluster. Since I don't drive very far it really doesn't matter that it doesn't work, I just check my fuel tank and fill up every week.

The CDI I ordered has not arrived yet, I was just wondering about ordering that other one if it was a better quality CDI.

I can check about it running if the battery is disconnected later this evening. The only working CDI right now is on my son's scoot & he works till 8 pm today.

[Alleyoop]

Cool, when you get a chance just disconnect the positive on the battery.
That is why it is nice to have an AC CDI System on a scoot so that if your battery and or charging system goes south you can still kickstart the scoot and the motor will run. But if the scoot has a DC CDI system once the battery goes south it is walking time.
Alleyoop

[tvnacman]

the 3 wires behind the cluster are screwed in with philips head screws, I have seen them loose many times.

John

[genseeker]

Been sick so just now got to check the scoot. Took the fuse out and then even disconnected the ground and it still ran. So looks like an AC system, correct?

But I got to thinking more, something has to be wrong with the wiring or something. The scoot reads over 5600 km which we know is inaccurate cause 10" wheels and not 12" wheels but still gotta be over 5000 km in reality between June 2014 and end of Aug 2015, right? So it doesn't make sense that if it was an AC CDI on a DC system that it would last that long. BTW, my son has to use my scoot yesterday cause he got a slow leak in a tire. He put his CDI on my scoot and it started fine, but he still had to kick it before it would start. That's the same thing it did to me before the CDI quit completely. Then when he was out for the day, the electric start quit but we can still kick start it. I had no problems starting it until the belt broke. Could that have damaged something? I didn't hear it run after the belt broke but a friend did and they said it started just fine.

After the shop replaced the belt, they said they had trouble getting it to start.I don't know what all normally get disconnected when the CVT is opened but they replaced the belt, contra spring (upgraded) and roller weights cause mine were worn. Logic to me says the problem is related to that work being done since it ran for so long without any trouble prior to the belt breaking. I don't know if they disconnected the battery or anything else like that and they are closed today so I can't call and ask. It was just this morning when I checked to see if it was AC or DC that I realized how many km I have put on it since I bought it last year.

The CDI I ordered has a triple prong plug and a different coil so hoping they get here today. Will check the wires on the gauge cluster if I feel up to opening her up, still not feeling the best in the world.

[Alleyoop]

The CDI I ordered has a triple prong plug and a different coil so hoping they get here today

What do you mean TRIPLE PRONG PLUG ON THE CDI?? The CDI has to match what you currently have NOW which is a 4 plug and 2 plug??
Put up the LINK OF WHAT YOUR ORDERED, you may have ordered the wrong thing.
Alleyoop

[tvnacman]

Sept 12, 2015 7:18:22 GMT -6 genseeker said:

Been sick so just now got to check the scoot. Took the fuse out and then even disconnected the ground and it still ran. So looks like an AC system, correct?

But I got to thinking more, something has to be wrong with the wiring or something. The scoot reads over 5600 km which we know is inaccurate cause 10" wheels and not 12" wheels but still gotta be over 5000 km in reality between June 2014 and end of Aug 2015, right? So it doesn't make sense that if it was an AC CDI on a DC system that it would last that long. BTW, my son has to use my scoot yesterday cause he got a slow leak in a tire. He put his CDI on my scoot and it started fine, but he still had to kick it before it would start. That's the same thing it did to me before the CDI quit completely. Then when he was out for the day, the electric start quit but we can still kick start it. I had no problems starting it until the belt broke. Could that have damaged something? I didn't hear it run after the belt broke but a friend did and they said it started just fine.

After the shop replaced the belt, they said they had trouble getting it to start.I don't know what all normally get disconnected when the CVT is opened but they replaced the belt, contra spring (upgraded) and roller weights cause mine were worn. Logic to me says the problem is related to that work being done since it ran for so long without any trouble prior to the belt breaking. I don't know if they disconnected the battery or anything else like that and they are closed today so I can't call and ask. It was just this morning when I checked to see if it was AC or DC that I realized how many km I have put on it since I bought it last year.

The CDI I ordered has a triple prong plug and a different coil so hoping they get here today. Will check the wires on the gauge cluster if I feel up to opening her up, still not feeling the best in the world.

Did you electric start or kick?

John