Will 99 Cdi work on 89 motor?

[Sharky74]

I bought an 89 motor to replace the one in my 99. Didn't come with a Cdi and I have my old Cdi. Will it work? Has the white/ green wire that is different, but didn't know if it was maybe just a ground.

My stator is toast so I can't just change it all out. Also, if it will not work, will one from an 88 (on my 89)work?

[motopunk]

the 86-89 cdi´s will all work with the 89-stator.
 but why you dont use your complete 99 ignition system?  the only big difference between the engines is the heavier crank-weight that came in 92 that gives more torque .. 

[dave916]

the 86-89 cdi´s will all work with the 89-stator.
 but why you dont use your complete 99 ignition system?  the only big difference between the engines is the heavier crank-weight that came in 92 that gives more torque .. 

Motopunt I am still trying to figure out how the 92on had a heavier crank weight without modifing the cases, Any pictures of the heavier crank?

[Motorrad]

the 86-89 cdi´s will all work with the 89-stator.
 but why you dont use your complete 99 ignition system?  the only big difference between the engines is the heavier crank-weight that came in 92 that gives more torque .. 

Motopunt I am still trying to figure out how the 92on had a heavier crank weight without modifing the cases, Any pictures of the heavier crank?

I think he is referring to the early years hole in the crank webs, vs the newer solid ones.

[Sharky74]

the 86-89 cdi´s will all work with the 89-stator.
 but why you dont use your complete 99 ignition system?  the only big difference between the engines is the heavier crank-weight that came in 92 that gives more torque .. 

My stator on my 99 is toast. Crank bearing went out and vibrated out the stator mounting screws, ruining it. I have tried to find one ( stator alone) in the states but no luck so far.

I don't really want to upgrade to the $500+ one ,but may be a wise choice?

[Sharky74]

May buy an 88 Cdi and throw it in, as its all i need to make it run. The manual I have is showing 88 different from 89. Is this correct?

[Foxx4Beaver]

you should just suck it up and contact alward25 and go this route!

http://www.kxriders.com/forums/index.php/topic,8353.0.html

[dave916]

I bought an 89 motor to replace the one in my 99. Didn't come with a Cdi and I have my old Cdi. Will it work? Has the white/ green wire that is different, but didn't know if it was maybe just a ground.

My stator is toast so I can't just change it all out. Also, if it will not work, will one from an 88 (on my 89)work?

has the 89 got big or small flwheel?
on the manual it looks like 89 W/G white/green is the same as B/Y black yellow 90on

 

[Sharky74]

It has the small flywheel, or so than the 99 one

[motopunk]

the 86-89 cdi´s will all work with the 89-stator.
 but why you dont use your complete 99 ignition system?  the only big difference between the engines is the heavier crank-weight that came in 92 that gives more torque .. 

Motopunt I am still trying to figure out how the 92on had a heavier crank weight without modifing the cases, Any pictures of the heavier crank?

I think he is referring to the early years hole in the crank webs, vs the newer solid ones.

yes...
 and its only the crank weight. cases are the same ´89-2004 ..there are a few ways to change crank weight without modifying to the cases..   the added crank weight is caused on the fact that the big kx was used more for offroad then motocross since the early 90´s.

here is a hrc honda rc500 works-crank that was used in worlchampionchip

http://www.mxworksbike.com/Honda_worksparts_2.htm

[motopunk]

the 86-89 cdi´s will all work with the 89-stator.
 but why you dont use your complete 99 ignition system?  the only big difference between the engines is the heavier crank-weight that came in 92 that gives more torque .. 

My stator on my 99 is toast. Crank bearing went out and vibrated out the stator mounting screws, ruining it. I have tried to find one ( stator alone) in the states but no luck so far.

I don't really want to upgrade to the $500+ one ,but may be a wise choice?

ebay : stators:
http://www.ebay.com/sch/i.html?_trksid=p2050601.m570.l1313.TR2.TRC1.A0.Xkx500+stator+&_nkw=kx500+stator+&_sacat=0&_from=R40 

cdi`s: 
http://www.ebay.com/sch/i.html?_sacat=0&_nkw=kx+500+cdi&_frs=1

3rd search for ignition:
http://www.ebay.com/sch/i.html?_sacat=0&_nkw=kx+500+ignition&_frs=1 

much luck to get the right one...   

[Sharky74]

Ya,thanks,  I been browsing ebay about 2 months now. And is why asking about the 88, if it will work in the 89 motor.

I either need an 89 Cdi OR a 92 and up stator to use with my flywheel and Cdi that I have. My bike/old motor is a 99. I replaced it with an 89 I bought, however it didn't come with a CDI.

I wouldn't mind upgrading, but this thing is putting me in the poorhouse already, and have only ridden it about an hour.

[dave916]

It has the small flywheel, or so than the 99 one

Have u got a clymer manual? It has wiring diagrams of the cdi stator wiring
The pre 89 flywheel/stator is alot smaller diameter than 89on 

[dave916]

the 86-89 cdi´s will all work with the 89-stator.
 but why you dont use your complete 99 ignition system?  the only big difference between the engines is the heavier crank-weight that came in 92 that gives more torque .. 

Motopunt I am still trying to figure out how the 92on had a heavier crank weight without modifing the cases, Any pictures of the heavier crank?

I think he is referring to the early years hole in the crank webs, vs the newer solid ones.

88 crank  with holes is the same weight as later cranks
still waiting to see 92on heavy crank,

[motopunk]

Ya,thanks,  I been browsing ebay about 2 months now. And is why asking about the 88, if it will work in the 89 motor.

I either need an 89 Cdi OR a 92 and up stator to use with my flywheel and Cdi that I have. My bike/old motor is a 99. I replaced it with an 89 I bought, however it didn't come with a CDI.

I wouldn't mind upgrading, but this thing is putting me in the poorhouse already, and have only ridden it about an hour.

if you look good into all the offers, you can assemble a complete 88 ignition system for roundabout 50,- dollar + shipping.. thats the thing, that i would prefer. so you have your bike running and could look in the future for an newer statorplate, that fits to your 99 ignition system