KymcoForum.com

Scooters - 50cc => zx50 => Topic started by: dan_the_man999 on March 17, 2013, 11:40:05 PM

Title: no spark
Post by: dan_the_man999 on March 17, 2013, 11:40:05 PM

hi all just joined the forum tho been reading as a guest for the last week or so

just bought a 1999 super fever and it wont spark

i think its the stator as im getting no voltage from the black/red wire at the bullet connection when i kickstart the scoot what voltage should i be getting here?

just wondering if there is any other tests i can do to check the stator coil or advice from the forum guru's

thanks in advance

Title: Re: no spark
Post by: MotoRandy123 on March 18, 2013, 11:40:49 AM

Hi,

 I don't have a wiring diagram for your scoot, so which wire are you testing?
Here's a picture;

Title: Re: no spark
Post by: dan_the_man999 on March 18, 2013, 09:08:36 PM

hi thanks for your reply but i think that pic is for a dc powered cdi
mine is ac

i'll try and get a diagram to show you

Title: Re: no spark
Post by: naughty lee on March 18, 2013, 09:24:48 PM

Start with the basics, new plug, connection from suppressor cap to ht lead, then the coil and its connections. What country are you in ?

Title: Re: no spark
Post by: dan_the_man999 on March 18, 2013, 09:45:46 PM

(http://i1111.photobucket.com/albums/h467/chris_gti_25th_tdi/image.jpg)

hi naughty lee im from the uk iv tried a new plug think its the stator coil tho

what ac voltage should be coming out the stator coil wire (the B/R wire in the diagram) to the cdi

cheers

Title: Re: no spark
Post by: MotoRandy123 on March 18, 2013, 10:23:14 PM

Well make sure you have the meter on AC and you should see a large voltage there
"An AC CDI runs off a moderately high voltage (80-300 volts or so) AC winding inside the stator. "

I have a lot of manuals for Kymco scooters and none of them use AC for the CDI... Maybe it's a US thing?

You can disconnect the CDI connector and measure the resistance of the Blk/red and it should be
100 ohms or more...

Title: Re: no spark
Post by: dan_the_man999 on March 19, 2013, 12:51:34 AM

thanks for the info and help randy
i'll check the resistance of the blk/red wire tomorrow and post back my results

Title: Re: no spark
Post by: MotoRandy123 on March 19, 2013, 12:27:17 PM

Stator's don't go that often, it's more likely a CDI fault. Here's what's inside it, if one of those diodes
shorted it might kill the voltage from the stator;

Title: Re: no spark
Post by: naughty lee on March 20, 2013, 11:03:30 AM

I had the same problem yesterday. My own fault for washing it with a hosepipe. If water gets into the air louvres on the stator cover, it won't spark. I spent an hour with a hair dryer blasting it in and now it fires. I'm in the uk too. If you have any queries, just give me a bell.
The scooter is my sons, but I love messing about with it.
07802 251502 ( Stockton on Tees )

Title: Re: no spark
Post by: dan_the_man999 on March 20, 2013, 07:15:54 PM

well iv ordered a coil a cdi and a stator should be here for the weekend so gonna try that lot then and let you all no the outcome gotta be one of the 3 surely and changing all 3 i no it'll be good for a while the only other thing lefts the ignition switch how do i test that?

cheers for the offer to call you lee might give you a call if it still dont spark when iv fitted the bits

thanks for the cdi info randy hav'nt had chance to test the stator resistance with the weather

Title: Re: no spark
Post by: dan_the_man999 on March 23, 2013, 03:44:30 PM

Wahoo it runs changed cdi, stator and coil started 3rd kick

Now I've got another problem but I'm gonna start a new thread for that

Thanks very much for everyone's input and advice