KX Riders
Maintenance & Technical => KX500 Original => Topic started by: bingowings on July 17, 2008, 03:41:48 AM
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Not quite a 500 but not far off. A bit of competion for Maico 490's. :-)
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That thing is Sweet. Those older big bore two stokes make you a man reall quick, because you don't want to cry while you are picking the gravel out of your A$$ in front of you friends.
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love at first sight
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omg......beautiful bike!!!!!!
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443? Is that a KX420 with a KDX450 crank?
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Just checking out this nice looking KX 443
Just like to know more about this machine, as I recall this machine was never a production machine. It either a works bike or a KX 250 A5 79 Model with a 443cc motor slipped in.
As I recall they did have a 443 works bikes, but I only remember them with a uni - trar suspension.
Kawasaki never made a production big bore in 78/79. KX 420 appeared n 1980/81 then dissappeared until 1983 KX 500 A1 air-cooled.
any information on it's history would be great.
I nearly have all KX pamplets from 74 to 2007!!! now kawasaki australia doesn't print them anymore.
Might have to get them from the States, can any one help??????
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It is a 1979 KX250 A5 rolling chassis with a KX420 engine JUST slipped in. The crank is a genuine Kawasaki 443
replacement. I rode it last weekend, nothing fell off bar me. Like riding an auto, very smooth. :-D
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Another pic, I've now fitted new side plates from Nightmare Racing . Excellent quality.
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way too awesome! I love the classic 2t bikes!
Kinda makes me wish I did not give away that 79 Honda 250 I had.
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Your bike looks great! I have a 75 KX250 and a 80 PE400 Suzuki projects that I hope to get to this winter. Those Nightmare sidepanels look nice!
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That bike looks great! my buddy just pulled a kx 420 out of a barn in the back of a vinyard a couple months ago. the owner just gave it to him. we cleaned the carb and tank. put some fresh gas in it and it started right up!
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Hi bingowings here is a couple of pisc of my kx250 a5 with a big bore motor 478cc been racing it for 3 years now been great
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gee simon you could have given the pipe a scrub up :-D
heres a better picture 8-)
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gee simon you could have given the pipe a scrub up :-D
heres a better picture 8-)
Simon, What length are the Fox shoxs and do thre work well on the KX?
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Sorry to dig up a VERY old post, but as a KX420 owner, I’m intrigued about the 443 kit motors.
I’m seriously considering writing a book on air cooled KXs and KDXs and this sort of info would be invaluable.
I’m really hoping to be able to write/publish something similar to my last book on Yamaha 2 Stroke road racers.
http://www.tz350.net/yamaha_two_stroke_production_roadracing_motorcycles.htm
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If I were you I would join FaceBook (If your not already) Look for the group KX Guru Racing. You will have access to many Kawasaki factory Techs and a Engineer who helped build and develop the big bore KX's for Kawasaki. Tom Morgan, Doug Haas, David Pyle, John Braasch and others. I own 3 different Air cooled KX500's and the help and advice has been invaluable.
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IF YOU look up a old aussie mag called trail and track 1981 august you will find a full test of the kx440 and what the kit consisted off , jetting specs and other things to keep a eye on.Good artical.