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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
Anybody Ride A KX500?
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[QUOTE="Tom Ludolff, post: 579602, member: 35523"] Nephron, I'm glad you mentioned the jetting!!! I haven't been able to get mine right yet. When I first brought it home from the dealer brand new, I couldn't let off the gas for a second without it fouling like crazy like I had the choke on. The pilot was so rich. I went from a 60 stock clear down to a 45 pilot before the air screw would have any effect. I have my needle clip at the very top notch and the main jet 1 step leaner than stock. I'm pretty sure the main is correct because if I go another step leaner, it cuts out when I full throttle it. I'm also pretty sure the pilot is OK too because if I take the air screw out past 1 1/2 turns, it starts to surge/starve at idle. However, even though it at least doesn't load up now, my spark plugs are always black after each ride and I have to clean them. The only other thing I can do at this point is switch to a leaner needle. Did you have this ridiculously rich problem too??? Gwcrim, I know what you're saying about the gearing being too high!!! Especially getting off of a KDX, which is geared like a tractor!!! It helped me immensely changing the stock 14 tooth countershaft to a 13 tooth. I tried a 12 tooth, but the chain rubbed on the case. When it's time for chain and sprockets, I plan on changing the stock 47 rear sprocket to a 52. [/QUOTE]
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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
Anybody Ride A KX500?
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