My New 'family bike' (Kymco ZX50)
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- CBR1000RR
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- Location: Southern Michigan
If moisture is your problem this will often save it, a neat trick I learned a while back.
1. Pre-heat toaster oven (not microwave) to 200° F max, and bake CDI for 2 hours.
2. When finished baking, drop CDI (while hot) into coffee can filled with enough WD-40 to completely cover CDI. (Gallon cans of WD-40 available at Home Depot and Lowe's.)
3. Let sit in WD-40 until cool (about 15 minutes).
Reason for WD-40 is it's ability to drive out moisture which is #1 reason why CDI packs fail.
2 reasons for baking:
1.) Drives out moisture.
2.) Heating causes everything to expand allowing WD-40 to 'suck in' to areas as CDI cools (contracts).
1. Pre-heat toaster oven (not microwave) to 200° F max, and bake CDI for 2 hours.
2. When finished baking, drop CDI (while hot) into coffee can filled with enough WD-40 to completely cover CDI. (Gallon cans of WD-40 available at Home Depot and Lowe's.)
3. Let sit in WD-40 until cool (about 15 minutes).
Reason for WD-40 is it's ability to drive out moisture which is #1 reason why CDI packs fail.
2 reasons for baking:
1.) Drives out moisture.
2.) Heating causes everything to expand allowing WD-40 to 'suck in' to areas as CDI cools (contracts).
I am not a mechanic, nor do I play one on TV. Actually my advice is probably worth slightly less than what you pay to view it.
- burnt_toast
- Veteran OG
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- Joined: Sat Jul 31, 2004 8:00 pm
- Location: Atlanta, GA
Next time your in your shop can you look up the price on it?
Im kinda broke
I found a few online. The only one i found with the same plugs was like $130-something
Im not sure if i posted this before or not. But i only paid $150 for the entire bike.
Im kinda broke

I found a few online. The only one i found with the same plugs was like $130-something

Im not sure if i posted this before or not. But i only paid $150 for the entire bike.
"Its not what you ride, its that you ride"
1996--------Honda Elite S-
1991--------Tomos Targa-
And a Bunch of other bikes.
1996--------Honda Elite S-
1991--------Tomos Targa-
And a Bunch of other bikes.
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- Veteran OG
- Posts: 3485
- Joined: Tue May 22, 2007 8:10 pm
- Location: North of Seattle, WA
Dac wrote:
A downloaded manual for the Super9, but manual identifies models as ZX50/Scout 50. It showed a very Honda like CDI, regulator and starter relay. (The below pic is a slight mod to the manual, the CDI pic was moved up to show along with the 'Kymco header'.

I searched for some other Kymco CDI info, and found some ATV's in the 50-80cc range used one that had 6 wires like yours. If yours CDI is identical, there was there's a rev limiter wire that can be clipped.
-- BTW have been including Kymco in my local sccoter shopping. So far have found a couple used ZX50's and 2 cycle Peoples, but at prices 1k to 1.5k.
Hmm that *is* diferent! maybe all ZX50's are not alike?this is a little different then what im use to seeing...
A downloaded manual for the Super9, but manual identifies models as ZX50/Scout 50. It showed a very Honda like CDI, regulator and starter relay. (The below pic is a slight mod to the manual, the CDI pic was moved up to show along with the 'Kymco header'.

I searched for some other Kymco CDI info, and found some ATV's in the 50-80cc range used one that had 6 wires like yours. If yours CDI is identical, there was there's a rev limiter wire that can be clipped.
-- BTW have been including Kymco in my local sccoter shopping. So far have found a couple used ZX50's and 2 cycle Peoples, but at prices 1k to 1.5k.
- burnt_toast
- Veteran OG
- Posts: 3469
- Joined: Sat Jul 31, 2004 8:00 pm
- Location: Atlanta, GA
Kenny_McCormic wrote:If moisture is your problem this will often save it, a neat trick I learned a while back.
1. Pre-heat toaster oven (not microwave) to 200° F max, and bake CDI for 2 hours.
2. When finished baking, drop CDI (while hot) into coffee can filled with enough WD-40 to completely cover CDI. (Gallon cans of WD-40 available at Home Depot and Lowe's.)
3. Let sit in WD-40 until cool (about 15 minutes).
Reason for WD-40 is it's ability to drive out moisture which is #1 reason why CDI packs fail.
2 reasons for baking:
1.) Drives out moisture.
2.) Heating causes everything to expand allowing WD-40 to 'suck in' to areas as CDI cools (contracts).
The cdi....

Baking for two hours....

Container of WD40...

let it soak....

Seem to work good, for about 2-3 miles. then this happened....

(its me broke down on the side of the road.)
"Its not what you ride, its that you ride"
1996--------Honda Elite S-
1991--------Tomos Targa-
And a Bunch of other bikes.
1996--------Honda Elite S-
1991--------Tomos Targa-
And a Bunch of other bikes.
- scooterwerx
- Elite
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- Location: redlands, ca
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- CBR1000RR
- Posts: 4957
- Joined: Sun Apr 16, 2006 11:51 am
- Location: Southern Michigan
Looks like some sort of ghetto rig. I bet the CDI has a loose connection inside that is very sensitive to moisture(seeing as you live within minutes of lake Michigan).scooterwerx wrote:that greenish bluish wire on the top of the picture of the cdi, is it bare and uninsulated? could be touching something and grounding out?
I am not a mechanic, nor do I play one on TV. Actually my advice is probably worth slightly less than what you pay to view it.
yeah, i normally have it taped up. i just untapped it for the oven.scooterwerx wrote:that greenish bluish wire on the top of the picture of the cdi, is it bare and uninsulated? could be touching something and grounding out?
"Its not what you ride, its that you ride"
1996--------Honda Elite S-
1991--------Tomos Targa-
And a Bunch of other bikes.
1996--------Honda Elite S-
1991--------Tomos Targa-
And a Bunch of other bikes.
- burnt_toast
- Veteran OG
- Posts: 3469
- Joined: Sat Jul 31, 2004 8:00 pm
- Location: Atlanta, GA