Maintenance & Technical > KX500 Original

'92 Ignition & Crank Changes

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m1886:
In the article "The Life & Times of the Kawasaki KX500" that was in Dirt Bike magazine earlier this year they mention "In 1992, the ignition and crank were changed as an unofficial acknowledgment that the KX was being used more for off-road riding than motocross."  Can anyone tell me what these changes were? Would this prevent any of you from buying a pre '92 bike if your plan was to use it for mostly woods with some desert riding?

don46:
So, as I recall the ignition was changed in 89, some had the smaller flywheel and some had the larger flywheel.  They may haved changed the ignition curve in 92 but I don't recall physical component changes. as for the crank I've used from 88 on in newer motors. So to answer your question, No I would not have an issue with a pre 92 bike, keeping in mind that a pre 92 probably has more time on it than a post 92

m1886:
Thanks a bunch for the info don46. I haven't looked at it in person yet but I've found a '91 that from the photos appears to have very little use and is bone stock (including the bright blue forks). It's not exactly what I want but if I could get it for the right price and the motor isn't worn out I could afford to make the modifications I want to it.

don46:
You can always upgrade the forks and shock with newer components, or at some time upgrade the frame.

m1886:
I know what you mean. I really love the looks of those BRP triple clamps and greenkaw24 has two sets of the 46mm forks for sale right now. That actually brings up another question. It appears that they switched the rear shock in '94 from a 44mm to a 46mm. Can I install the newer shock to the frame and linkage of an older bike?

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