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Posted by: jeffnrivercity
Well....any luck..did it work?
Posted by: jeffnrivercity
keep us updated....
I might have to do the sprocket and wheel trick myself...untill a CDI come along that works
thx
Posted by: DSengineer
Hmmm. A few of these guys mentioned the 90 CDI works just fine. No mention of swapping wires. Isn't it just plug and play?? Are you sure you have the correct CDI??
LTZ50 thread
Posted by: AIRMOBILE101
I finally figured out how to wire a KFX90 cdi box to a KFX50. What a relief!!!!!! I just had to keep chipping away at it. Dealers said it couldn't be done. What the crap do they know!!!! Anyways, I started it ,but I dont have any hard numbers yet. Its 1AM here in ST.LOUIS so Ill have to wait until the morning.So heres the facts:
07 KFX90 CDI BOX: 30400-PVA2-900
07 KFX50 CDI BOX: 30400-PVA1-900 Both boxes have"2006.AUG" under the number.
WIRING: SOLID BLACK WIRE NEEDS TO SWAPPED TO OTHER SIDE OF 2PIN CONNECTER ON THE KFX90 CDI BOX.
YELLOW/BLACK WILL STAY IN THE UPPER LEFT OF THE 4 PIN CONNECTOR
BLUE/YELLOW WILL MOVE TO LOWER LEFT OF 4-PIN CONNECTOR
GREEN WIRE WILL MOVE FROM THE UPPER RIGHT TO LOWER RIGHT , THEN YOUR DONE.
KFX 50 KFX90
BLACK O O ------ 2 PIN CONNECTOR ----- O O BLACK
BLACK/Y O O GREEN 4 PIN CONNECTOR BLACK /Y O O -------
------- O O BLUE/Y BLUE/Y O O GREEN
If that makes any sense!!! The diagram above is laid out as if the 2 pin connector is on top and the four pin connector is on bottom. Your wiring should look like the KFX90 after you install the KFX90 BOX. You don't need to cut wires. Take a small electrical screw driver(or small eyeglass screw driver) and push each pin out. I hope to have some results tommorrow.
Posted by: AIRMOBILE101
Yea , it worked , but is got the same rev limit on the 90 as the 50 does(7500rpm).I found a kymco scooter that has the same wiring to the cdi. So I ordered a 10000rpm cdi from a guy in Taiwan for 30.00 . Just waiting for the part. Hopelly ill get this beat on way or an other.
On a positive note: Got the little 50 going 21mph now with the bigger wheels and sprockets. I weight about 140 pounds , so imagine he(my son) should be able to get 22 mph on it. Took the bike to a street that had one of those police radar trailers set up.
Posted by: AIRMOBILE101
Yea , Ill keep ya posted. This whole thing is just so frustrating. Ill get it, just gonna take some time!!!! Not to many bike out there that got a 12vdc powered cdi box compared to the stator power boxes.
Posted by: AIRMOBILE101
Originally posted by: jeffnrivercity
keep us updated....
I might have to do the sprocket and wheel trick myself...untill a CDI come along that works
thx
Well, it didn't work. I kinda figured it wouldn't. It was worth the try. The CDI actually blew up when I cranked the engine over (LOL). Just gonna have to wait until the aftermarket comes to grips with this 4-stroke. 7500 RPM'S is enough(for now).
Posted by: AIRMOBILE101
Originally posted by: DSengineer
Hmmm. A few of these guys mentioned the 90 CDI works just fine. No mention of swapping wires. Isn't it just plug and play?? Are you sure you have the correct CDI??
LTZ50 thread
I PM'ED YA---CHECK YOUR MESSAGES!!!
