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Post by alyn99 on Jan 16, 2013 21:33:16 GMT -5
On newish Znen L roar 250cc (cfmoto style 244cc engine) with no prior starting issues I plugged in a Casoli cdi to replace stock cdi and now bike will not start. I grounded plug to body while cranking and there is no spark. The new CDI was AC, I assumed I had a stock ac cdi but perhaps it was a DC. The stock CDI is small, has only 1 wire going to the 2 prong connector which is black. Assuming I screwed up and plugged ac cdi into dc dci connections what would it have shorted? There was no pop and no smell. Bike cranks fine but no spark. No blown fuses either. Please help. Thanks!
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Post by thumper650 on Jan 16, 2013 22:30:31 GMT -5
Double check the kill switch. Check it twice.
so you're saying now the old CDI won't work either?
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Post by alyn99 on Jan 16, 2013 22:34:02 GMT -5
The kill switch is definitely off. And original CDI will not work. It cranks but no spark. I hope to hell I didn't short the stator.
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Post by tvnacman on Jan 16, 2013 22:35:04 GMT -5
sorry to hear about your trouble . Does the vendor test the electrical parts before shipping ?
John
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Post by alyn99 on Jan 16, 2013 22:37:14 GMT -5
Don't know. It may have been my error. i asked for an AC. The CDI that's on there is substantially smaller than the CDI on my other DC CDI 150cc. Right now I am happy to keep the working stock CDI if I could just get the bike to spark.
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Post by tvnacman on Jan 16, 2013 22:37:27 GMT -5
take a look at the plug see if the pin/pins backed out of the plug . If the cdi has wires and a plug check that side too .
John
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Post by alyn99 on Jan 16, 2013 22:39:08 GMT -5
Doing it now. Thanks.
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Post by tvnacman on Jan 16, 2013 22:42:47 GMT -5
one wire on the two pin plug tells me its dc cdi . At worst you would burn the new cdi out . I know the dc cdi will fire in an ac set up . I'm not sure about dc set up with an ac cdi .
John
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Post by alyn99 on Jan 16, 2013 22:44:47 GMT -5
I checked all pins in connectors. All solid and fine. Triple checked the kill switch. Still no spark. There are fuses under the seat (4) which are all good. Could there be any other hidden fuses on these scoots to protect against such mishaps?
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Post by tvnacman on Jan 16, 2013 22:49:29 GMT -5
check the wires on the coil (pull the boot up)
otherwise get a volt meter , the single wire in the 2 pin plug should have 12vdc when the key is on , kill switch in run position , side stand up .
John
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Post by tvnacman on Jan 16, 2013 22:50:41 GMT -5
there is a fuse on the starter solinoid , but if it were blown the scooter would be dead .
John
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Post by alyn99 on Jan 16, 2013 22:52:47 GMT -5
Thanks am checking for 12v on single wire in 2 pin connector which is black BTW.
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Post by tvnacman on Jan 16, 2013 22:54:42 GMT -5
green is ground on chinese scooters , black is switched power most of the time .
John
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Post by alyn99 on Jan 16, 2013 23:05:46 GMT -5
Sorry, Single wire was black/green in 2 prong connector. No voltage on that wire when key is on. No voltage to any other wire in the 4 pin connector when key is on. Perhaps some fuse somewhere that blew knocking out all power to CDI??? I've attached scoot's wiring dia if it helps. Attachments:
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Post by tvnacman on Jan 16, 2013 23:16:18 GMT -5
That diagram hurts my eyes . check the fuses it shows a direct feed from the fuse to the cdi .
John
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Post by tvnacman on Jan 16, 2013 23:20:30 GMT -5
send me an email tvnacman@aol.com
John
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Post by alyn99 on Jan 16, 2013 23:23:58 GMT -5
John, a million thanks! There was a hair line crack in the fuse that I missed in my three times checking it. I should've replaced all 4 fuses before I started panicking for good measure. lesson learned. the bike starts now! Thank god a fuse was in line for this. On the wiring dia they call the fuse box the "disaster box'. Sure was. Thanks again!!!!
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Post by alyn99 on Jan 16, 2013 23:27:08 GMT -5
John, one last thing. Can you tell if the cdi is ac or dc from the wiring pdf? The single wire in the 2 prong connector goes to fuse box and there is 12volts on it when ignition is on. So this is probably a DC cdi?
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Post by tvnacman on Jan 17, 2013 18:35:23 GMT -5
yes it is dc cdi .
Your welcome !!!!!!!
John
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Post by leo on Jan 17, 2013 19:04:22 GMT -5
send me an email tvnacman@aol.com John why are you asking people to email you for solutions instead of posting it to the thread? |
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Post by richardthescooter1 on Jan 17, 2013 19:16:54 GMT -5
here you go DC CDI  Attachments:
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Post by tvnacman on Jan 17, 2013 19:41:32 GMT -5
send me an email tvnacman@aol.com John why are you asking people to email you for solutions instead of posting it to the thread? I sometimes link people to other forums and the links and or words that make up the other sites censored . I was concerned that I may have needed back up on electrical . Like good diagrams .We know who the real Guru is and what proboards site it is . Then the other does about the best tech writing with illustration . Does that answer your question Leo ? Oh your welcome to email me if your intrested where I was going to link him . (can't do that in open forum or pm) John |
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Post by Carolina Fun Machines on Jan 17, 2013 19:50:16 GMT -5
It is my understanding that if you turn your key on and the headlight comes on you have a DC based bike. On the other hand if the bike has to be running for the headlight to come on then it is an AC based bike. AC CDI's are smaller than a DC based CDI.
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Post by richardthescooter1 on Jan 17, 2013 19:54:19 GMT -5
I have mc-54-250b (DC) turn key on little lights light up, no headlights until I start scoot.
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Post by snugglebunny on Jan 17, 2013 19:56:38 GMT -5
why are you asking people to email you for solutions instead of posting it to the thread? I sometimes link people to other forums and the links and or words that make up the other sites censored . I was concerned that I may have needed back up on electrical . Like good diagrams .We know who the real Guru is and what proboards site it is . Then the other does about the best tech writing with illustration . Does that answer your question Leo ? Oh your welcome to email me if your intrested where I was going to link him . (can't do that in open forum or pm) John yea those other forums have the best super techs when it comes to electrical and diagrams and , like you, some of the 'bosses' will call you and walk you through something good people |
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Post by tvnacman on Jan 17, 2013 20:02:19 GMT -5
It is my understanding that if you turn your key on and the headlight comes on you have a DC based bike. On the other hand if the bike has to be running for the headlight to come on then it is an AC based bike. AC CDI's are smaller than a DC based CDI. I have a 150cc with dc headlights and ac cdi . the running lights are ac . As far as size goes that is true for stock cdi's . John |
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Post by tvnacman on Jan 17, 2013 20:06:06 GMT -5
I sometimes link people to other forums and the links and or words that make up the other sites censored . I was concerned that I may have needed back up on electrical . Like good diagrams .We know who the real Guru is and what proboards site it is . Then the other does about the best tech writing with illustration . Does that answer your question Leo ? Oh your welcome to email me if your intrested where I was going to link him . (can't do that in open forum or pm) John yea those other forums have the best super techs when it comes to electrical and diagrams and , like you, some of the 'bosses' will call you and walk you through something good people Thanks snuggle , I did some research and found out , some people think they know it all . John |
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Post by snugglebunny on Jan 17, 2013 20:14:56 GMT -5
johnyea those other forums have the best super techs when it comes to electrical and diagrams and , like you, some of the 'bosses' will call you and walk you through something good people Thanks snuggle , I did some research and found out , some people think they know it all . John lol and then there are the people that do!!!!!!! aly, rch,ban |
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Post by tvnacman on Jan 17, 2013 20:18:23 GMT -5
Thanks snuggle , I did some research and found out , some people think they know it all . John lol and then there are the people that do!!!!!!! aly, rch,ban ya missed one but don't get us banned . John |
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Post by yosemite on Jan 17, 2013 20:33:45 GMT -5
It is my understanding that if you turn your key on and the headlight comes on you have a DC based bike. On the other hand if the bike has to be running for the headlight to come on then it is an AC based bike. AC CDI's are smaller than a DC based CDI. That is not correct, my 150 is AC BUT all my lights are powered from the battery directly. Just turn the key on and all the gauges work the instruments light come on and I have a Light Switch on the right handgrip and can turn my headlights on and or running lights the whole tamale. Sam |
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