kdx 220 cdi
-
- Member
- Posts: 27
- Joined: 04:33 am Apr 30 2011
- Country:
kdx 220 cdi
Hi, i picked up on ebay a 220 motor with no cdi...
so i was thinking about putting a double map cdi (two or more powerbands that you can choose) like in ktms or gas gas...
is a 97 kdx200 cdi the same of a kx 125? i'm doing an hybrid with a cr 125 so i don't need lights and ''road legal'' stuff..
thank you so much!
so i was thinking about putting a double map cdi (two or more powerbands that you can choose) like in ktms or gas gas...
is a 97 kdx200 cdi the same of a kx 125? i'm doing an hybrid with a cr 125 so i don't need lights and ''road legal'' stuff..
thank you so much!
- scheckaet
- KDXRider.net
- Posts: 3740
- Joined: 12:09 am Nov 10 2005
- Country:
- Location: edmond oklahoma
I don't think the KX cdi work.
02 KX 200 hybrid: RB head and carb
Sold ☹ DRZ 400 SM
bike build: http://www.kdxrider.net/forums/viewtopi ... ike+stable
bike profile http://www.kdxrider.net/forums/viewtopi ... 0709#30709
newb info: http://www.kdxrider.net/forums/viewtopi ... 57#p117919
jetting guide: http://www.kdxrider.net/forums/viewtopi ... 105&t=1156
Sold ☹ DRZ 400 SM
bike build: http://www.kdxrider.net/forums/viewtopi ... ike+stable
bike profile http://www.kdxrider.net/forums/viewtopi ... 0709#30709
newb info: http://www.kdxrider.net/forums/viewtopi ... 57#p117919
jetting guide: http://www.kdxrider.net/forums/viewtopi ... 105&t=1156
- Julien D
- KDXRider.net
- Posts: 5858
- Joined: 07:53 pm Nov 07 2008
- Country: USA
- Contact:
- Julien D
- KDXRider.net
- Posts: 5858
- Joined: 07:53 pm Nov 07 2008
- Country: USA
- Contact:
-
- Member
- Posts: 49
- Joined: 01:23 pm Sep 26 2009
- Country:
- Location: Minnesota
I have seen you post this info more than once...and I just HAVE to ask...How exactly does the CDI "know" when the kips valve is open..and when it is closed...considering there is no sensor or any other device wired to it that would tell it? Magic?juliend wrote:Important to note, the KDX cdi has 2 maps. One for kips closed operation, one for kips open operation. Any replacement would need to match this.
Wherever you go......there you are
1993 KDX250
1997 KDX220 Street Legal !!
1993 KDX250
1997 KDX220 Street Legal !!
- SS109
- KDXRider.net
- Posts: 5793
- Joined: 05:11 am Aug 23 2009
- Country: USA
- Location: Tucson, AZ, USA
- Contact:
Yup!TWMOODY wrote:Preset mapping, kips opens around 6k thus cdi reads rpm knowing the
kips is open or should be and changes timing.
Youtube Channel: WildAzzRacing
AZ State Parks & Trails OHV Ambassador - Trail Riders of Southern AZ
Current KDX: '98 KDX220
Old KDX: '90 KDX200 -White/Blue
'11 GasGas EC250R
AZ State Parks & Trails OHV Ambassador - Trail Riders of Southern AZ
Current KDX: '98 KDX220
Old KDX: '90 KDX200 -White/Blue
'11 GasGas EC250R
-
- Member
- Posts: 49
- Joined: 01:23 pm Sep 26 2009
- Country:
- Location: Minnesota
- fuzzy
- KDXRider.net
- Posts: 3437
- Joined: 01:29 pm Jun 18 2003
- Country:
- Location: Fredneck, MD
- TWMOODY
- Gold Member
- Posts: 752
- Joined: 08:10 pm Dec 01 2006
- Country:
- Location: Southeast , Michigan
Um...... May I ask how the cdi recognizes rpm then ?fuzzy wrote:It really doesn't read anything....FYI. At XYZ rpm it does what it's been programmed to do. Programmed to match mechanically governed PV open RPM. The 200/220 are the same.
Is it not reading or receiving a reference signal from the stator
interpreting that as rpm then adjusting timing based on that
current RPM reading ?
-
- Member
- Posts: 27
- Joined: 04:33 am Apr 30 2011
- Country:
Thank you everybody for the answers.....but i don't get how the cdi ''knows'' that the bike reached 6k rpms.....no sensors or no reading....so how?
Another question...is the voltage regulator necessary only on the models with lights and road legal stuff? just to know if i cannot buy that cause i don't need lights......(or is necessary to have all the electric syste okay?)
Thank you so much!
Another question...is the voltage regulator necessary only on the models with lights and road legal stuff? just to know if i cannot buy that cause i don't need lights......(or is necessary to have all the electric syste okay?)
Thank you so much!
- Jaguar
- Supporting Member
- Posts: 590
- Joined: 01:32 am Jul 03 2013
- Country: Paraguay
- Location: Paraguay
- Contact:
Re: kdx 220 cdi
If the CDI made some timing change (other than when the main timing curve kicks in at 3600RPM) when the KIPS fully opens (I think I remember my '89 opening at 7000) then it does so because with more RPM is more voltage peaks of the sine wave from the stator coil. The CDI is analog though and not digital and so any change would be gradual, not sudden. In looking over all the wiring diagrams of the KDX that are posted on the internet I did find one that had an additional wire that went to the speedometer and neutral switch. My educated guess is that the timing is retarded when the neutral switch is engaged to lessen the probability of it idling too high. I highly doubt there is any timing change in sync with the KIPS.
If anyone is looking for a cheap replacement for the KDX CDI then send me a message.
http://www.dragonfly75.com/moto/KDXCDI.html
If anyone is looking for a cheap replacement for the KDX CDI then send me a message.
http://www.dragonfly75.com/moto/KDXCDI.html
Performance CDI -- KDX motocross mods -- the SR KDX -- expansion chamber analysis---> http://www.dragonfly75.com/moto/