Posts by tag: kz1000s1

Kawasaki October 3, 2013 posted by

Rare bike double shot: 1982 Kawasaki KZ1000S1 Superbike

Mike wrote this a couple days ago based on the information available. The listing has since been revised to note that it is not in fact an S1. -dc


If you are not sure what you are looking at, it would be best for you to start here. That post from Ian portrays a museum-quality S1, and is one of the most popular posts and FaceBook entries in RSBFS history. Ian nicely outlines how the S1 is essentially a pre-homologation Superbike, offered in limited numbers for race teams and well-heeled privateers.


1982 Kawasaki KZ1000 S1 for sale on eBay

Unlike Ian’s earlier S1 find, this one is not exactly pristine. It carries with it the patina of age, of modification, and of neglect. The pictures are far from high resolution. If it is a true S1, then it is historically significant and a rare find. It is far from perfect, which will take away from the value, but may yet reveal nuggets of uniqueness that a collector would be willing to pay for. If you are looking for an S1 to ride, you have some serious work ahead of you. Read on.


From the seller:
New Jersey find now in Florida , I have kept this bike as I found it years ago… deserves to remain like this as a piece of history…….we’ve all heard the stories of these ending up back in JAPAN, and its true…..but if you are a road race bike collector or racer in the vintage class either here in the U S or Down Under, or our friends in Europe and don’t forget the friendly Asian men who started this all then this bike is worth a look. Full race prep engine by Vance and Hines who actually owned 7 S1 bikes ! They purchased them directly in the late 80’s in a bulk purchase, where are they ? ? True. The dealership on the tank is still in business today but like others have merged with the other brands and have moved to a larger facility still on Rt23 today. Pics are of the day I got it, I will be taking it out of storage this weekend and will have many pics to view.

To the owner of the S1 on ebay and to the bidders of that bike……I am aware of the value and condition of #0000070, and I know that bike is Museum bound and rightly so, but how cool would it be to have this race proven, race driven bike right next to it in a collection ? Wish I could. Thanks to all……


This auction is either very coincidental, or this seller had the business acumen to list his bike after the first S1 crossed the block. The “museum-bound” bike auction is currently above $65,000 and the reserve is off – so that mint racer is going to a new home. Current value for a rather worn and undocumented S1? Current bidding is in the $3k range, with reserve still in place. According to the seller, this is bike Vin # 0000037.


These two auctions present a wonderful opportunity to see both sides of a factory racebike story. As always, we urge RSBFS readers to do their homework and due diligence on any rare or limited production motorcycle. Check out all of the auction details here, and then let us know your thoughts. Basket case, or gold nugget in the rough? Is this something on your bucket list? Let us know!


Rare bike double shot: 1982 Kawasaki KZ1000<del>S1</del> Superbike
Kawasaki October 2, 2013 posted by

Kawgasm! 1982 Kawasaki KZ1000S1

Update 10.2.2013: Current bid is over $71k reserve met! With 7 hours to go, where do you think this one will finish? Leave a comment below! -dc

kz right

I didn’t think it could get much better than the Yoshimura/Honda CB750 from two weeks ago. Once again I’m proven wrong.  Before you is the Holy Grail to Kawasaki collectors, a KZ1000S1.  Basically the homologation special of the day with the 30 or so made not being made available to the general public.

1982 Kawasaki KZ1000S1 for sale on eBay

kz headerskz engine 2

Straight to the engine porn! Here is the story:

If you’re one of the Chosen Few, you can now obtain the unobtainable; from the May 1982 Cycle magazine S1 review article. 29 of these motorcycles were imported for AMA superbike racing in 1982, dealer cost was $10,999.00. No retail price was listed. Several ended up being shipped out of the country. It is also my understanding that some were disassembled by Kawasaki to sell as parts. How many I do not know. So here is your chance to own a very rare motorcycle that is in excellent condition and that has a history, even if it is short. This particular bike was purchased by Grayboy Kawasaki in Peoria Heights, IL. The owner of the dealership at that time had a team running the Grand National circuit in dirt track. This bike was purchased by the owner to go roadracing with national expert rider (33) Dave Hebb of Canton,IL. His roadracing number was 93. This bike has one sprint race and two practices from one weekend of racing at Indianapolis Raceway Park in Clermont, IN. I’m not sure what happened after that, because the bike was put in storage at the dealerships warehouse until I purchased it in October of 1985. The bike was nevered titled until I purchased it from the dealership. So by the title, I’m the original owner. I have had the bike in a climate controlled storage (my house) since 1985. The cylinders were oiled and the engine was rotated over ever so often when in storage. It still has the original Dunlop Racing KR133 slicks mounted on the Dymag magnesium wheels. Also included is the factory spares kit. I also purchased some extra parts back in the mid eighties that are included. When I purchased the bike, my intentions were to license it and ride it on the street. But instead, I kept riding my 1984 900 Ninja because it was such a great bike. So I never got around to making the S1 street legal using Eddie Lawson replica parts. Spares kit includes left and right front brake rotors, rear brake rotor, three sets of front brake pads, two sets of rear brake pads, front axle, two pistons and rings, gearing, chain, staking master links , special tools, two sets of different rate fork springs, sprocket cush drive, assorted jetting, shorter velocity stacks, throttle cables, clutch cable, o’rings, oil seals, fork seals, etc. and two parts catalogs. I tried to show the condition of the vehicle with the photos. I changed oil and filter, put in 3 gallons of fresh Phillips 66 (111 octane) race fuel and started the bike before listing it here. The engine sounds as good as the day I purchased it

kz naked claims the only documented sale of a KZ1000S1 was back in 1997 for $40,000.

kz left rear

It has the look of just put a number plate on and race but it is far from stock: braced swing arm, extra frame bracing, Mikuni flatsides, Lockheed brakes, magnesium wheels etc, etc.  I saw someone on a message board mention they used an ignition or CDI off a KX80; interesting.

kz tank

Does anyone really pay attention to these stickers?  I doubt this one will ever see any pavement or tarmac again.

kz spareskz spares 3

kz spares 2

I would imagine some of those items are as rare as the bike.

kz left

Well,  the Yosh/Honda CB went for $30,100. Apparently the last known KZ1000S1 went for $40,000 back in 1997. What is the take it price home for this one?

Check the back account before placing a bid here.


Kawgasm! 1982 Kawasaki KZ1000S1