1981 Kawasaki KX80 ***Warning - lots of pictures

mxchris208
Posts
19
Joined
12/6/2018
Location
Sanford, FL US
Edited Date/Time 11/23/2021 4:50pm
Here's a pretty sweet build that I went way overboard with. There are very, very few parts that aren't either new or NOS. I never had one when I was a kid (had CR80) but I love the looks of the KX and when the opportunity came last year I jumped on it. To name just a few trick items, the engine is the 105cc factory option which was then was worked by Tom Morgan. Custom built YSS shock and converted to 428 chain/sprockets. The list is almost endless.


























































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Grimace
Posts
22
Joined
10/4/2017
Location
Orange County, CA US
12/6/2018 4:19pm
Amazing restoration. Excellent work!!
3
12/6/2018 5:02pm
Great build man. Have any plans for anyone riding it? That thing looks like it belongs in a showroom.
mxchris208
Posts
19
Joined
12/6/2018
Location
Sanford, FL US
12/6/2018 6:44pm
Great build man. Have any plans for anyone riding it? That thing looks like it belongs in a showroom.
I did ride it and it rips but not enough that it’s broken in yet. I would love to sell it to someone who has a museum or a displayed collection.
vmxracer
Posts
129
Joined
3/7/2016
Location
Toowoomba AU
12/7/2018 4:35am
Good looking resto. I had one as my first bike.
1

The Shop

lhthread
Posts
7
Joined
3/6/2018
Location
Deer Park, NY US
12/7/2018 9:44am
My first real mx bike. Coming from an XR80, I thought no motorcycle in the history of man could make more power than the KX! I have a vivid memory of feeling it come onto the pipe for the first time. And after about the 3rd run through the gears, I looped it hard trying to do a wheelie the same way I'd do it on the XR. There weren't many KX minis in those days, it was a YZ and RM world. I took the sales brochure to school every day to argue with my friends about which one was better. A neighbor who used to race came over and taught me how to work on it. I learned how to maintain the Uni Track links and do a top end. I asked for tools for Christmas, 13 years old. Wrenching and riding was all I cared about. It kind of ruined me (or saved me) for life.

Hats off to you for a fine build. Thanks for all the pictures. That airbox! I remember hating the way I couldn't get the filter through the opening without smearing oil everywhere. Your silencer terminates ahead of the rear number plate more than the stock arrangement, which is good for keeping it clean.
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mxchris208
Posts
19
Joined
12/6/2018
Location
Sanford, FL US
12/7/2018 11:48am
@Ihthread thanks. The airbox was actually a difficult part of the assembly. lol. The way the cage attaches to the airbox was just a weird design. Looks like Kawi changed to a better design in '82. It's a really fun bike.
HenryA
Posts
3789
Joined
12/29/2011
Location
Stockholm SE
12/7/2018 2:08pm
Wow, what a great restoration!
1
shuggs
Posts
1574
Joined
8/6/2008
Location
Dunfermline GB
12/8/2018 2:56am
Very, very well done. Looks amazing
1
hackjob
Posts
2
Joined
6/19/2019
Location
Upland, CA US
6/19/2019 8:59pm
I just pick one of these up and am doing a slightly custom build. I stuffed a rear shock from an 86 kx80 on her and was wondering what you used? Also, what carb is on yours? The previous owner of mine swapped the carb out for a throttle and vm33 (33mm) carb from an 80s yz.
mxchris208
Posts
19
Joined
12/6/2018
Location
Sanford, FL US
6/20/2019 6:34am
hackjob wrote:
I just pick one of these up and am doing a slightly custom build. I stuffed a rear shock from an 86 kx80 on her and...
I just pick one of these up and am doing a slightly custom build. I stuffed a rear shock from an 86 kx80 on her and was wondering what you used? Also, what carb is on yours? The previous owner of mine swapped the carb out for a throttle and vm33 (33mm) carb from an 80s yz.
I had a custom YSS shock built for it. They didn't originally have one for it so I had to send them my stocker and the designed a shock. Their service was pretty quick and good pricing.
The bike has the stock carb but larger jetting for the 105cc kit.
hackjob
Posts
2
Joined
6/19/2019
Location
Upland, CA US
6/20/2019 7:11am
hackjob wrote:
I just pick one of these up and am doing a slightly custom build. I stuffed a rear shock from an 86 kx80 on her and...
I just pick one of these up and am doing a slightly custom build. I stuffed a rear shock from an 86 kx80 on her and was wondering what you used? Also, what carb is on yours? The previous owner of mine swapped the carb out for a throttle and vm33 (33mm) carb from an 80s yz.
mxchris208 wrote:
I had a custom YSS shock built for it. They didn't originally have one for it so I had to send them my stocker and the...
I had a custom YSS shock built for it. They didn't originally have one for it so I had to send them my stocker and the designed a shock. Their service was pretty quick and good pricing.
The bike has the stock carb but larger jetting for the 105cc kit.
Thanks for the response. I didnt know there was a 105cc set up. I can't find anything for 81/82 kx80s. Even the nitrogen pressure for the front forks....nothing in my book about it. Rear shocks weren't even mentioned, so I winged it with the shock I used.
8/17/2021 6:50pm
She looks great! I just got one yesterday. I need parts! The engine on mine is already re-built.
mxchris208
Posts
19
Joined
12/6/2018
Location
Sanford, FL US
8/23/2021 6:37am
Hey, I got this bike a few weeks ago, almost exactly the same way you got yours, but without the engine or gas tank, I want...
Hey, I got this bike a few weeks ago, almost exactly the same way you got yours, but without the engine or gas tank, I want to know where you got your parts. email me at keatonn6032@gshare.blackgold.ca
Sorry, just now seen your question. Pretty much all parts I purchased were from eBay. I would get the part numbers needed from revzilla dot com and then search that pt on eBay.
mxchris208
Posts
19
Joined
12/6/2018
Location
Sanford, FL US
8/23/2021 6:38am
She looks great! I just got one yesterday. I need parts! The engine on mine is already re-built. [img]https://p.vitalmx.com/photos/forums/2021/08/17/506176/s1200_1982_KX80.jpg[/img]
She looks great! I just got one yesterday. I need parts! The engine on mine is already re-built.
Good luck. It was a fun project. I do have some parts left over if you're needing any or let me know if any questions.
mxchris208
Posts
19
Joined
12/6/2018
Location
Sanford, FL US
8/23/2021 6:48am
My previous pictures didn't have the decals on them. Figured I should post a few pics with them on. Nice difference.




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11/23/2021 4:50pm
Chris did you paint the frame yourself? If so what paint did you use? Did you clear coat it too. Thanks!!!

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