Honda CB750K '79 Cafe Racer EVO -project from Finland

Gotta tell you, I'm an old Harley guy and my taste in custom bikes usually runs to long front ends, ridged frames and drag pipes, but that bike is magnificent.
I especially like the color. I almost bought a newer Triumph that was painted about the same color instead of the 10th Anniversary bike I now own.
 
Gotta tell you, I'm an old Harley guy and my taste in custom bikes usually runs to long front ends, ridged frames and drag pipes, but that bike is magnificent.
I especially like the color. I almost bought a newer Triumph that was painted about the same color instead of the 10th Anniversary bike I now own.

Great to hear that the bike is liked across "class boundaries". The color was a great choice (imo) and it also received a lot of compliments at the expo.
 
The past few weeks have been a bit quieter, but steady progress has still been made.

Holes were added to the mat under the electrical components as suggested. We’ll keep an eye on operating temperatures and see whether components like the regulator need to be relocated fully outside. That wouldn’t be a problem technically, even if it’s not my preferred solution visually.
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The Mikuni VM29SS carburetors had to be removed and disassembled once more, as they were not functioning correctly and a few issues were discovered:
  • The accelerator pump plungers were seized and the springs were worn out, so they were replaced. The system is now working properly again.
  • Between the choke rod and the carburetors there should be two small steel balls and springs, which were missing. These were sourced and installed, and the choke now operates correctly.
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One of the front brake lines turned out to be too tight after the recent modifications, so it had to be remade. A matching HEL carbon-colored braided line was custom-made by Porvoon Mittaletkut, and it now fits perfectly.
The rear brake line was also too long and was contacting the exhaust. It was shortened and re-routed, and the routing is now correct.
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The bike now has fully functioning brakes.
Brake fluid was added and the system bled. Despite my initial doubts, I have to give credit to the “Chinese wonder” – a one-way bleed valve. Bleeding the brakes was surprisingly easy and could be done solo without issues.
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There was a small challenge with the front brake master cylinder, which suffered from a severe air lock – a well-known GSX-R issue. It was extremely stubborn at first, but eventually fluid circulation was restored and the brakes are now working as intended.


Side project…​

The bike has been registered for several upcoming shows, and for some of them I was personally invited to bring it on display.
At the MP Fair, I really liked the display platforms used under a neighboring custom CB750 and a Tracker build, so I decided to build one for my own bike as well.

At events like the MP Fair and ACS, the surroundings are already visually impressive, but at many other shows the floor is often just a sports hall surface or plain plywood. With a dedicated display platform, the bike can stand out better even when the venue itself is less inspiring.


Design phase – 3D model
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Execution
11 mm OSB board (2600 × 1197 mm) with a 45 × 45 mm frame. The result is lightweight, durable, and easy to transport. Thanks to the OSB material, the surface retains a nice texture even after painting.
Grey surface with a black frame.
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Finished setup
A few custom decals were added to the sides and the platform was assembled. I’m very happy with the end result – it visually lifts the bike off the floor and really completes the presentation.
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As an extra, I also redesigned the information board and added legs so it appears integrated into the platform itself.
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Upcoming shows where the bike will be on display:​

  • Pori Motorshow – March 7–8
  • Jyväskylä Motorcycle Show – March 21–22
  • ACS – April 3–5
  • HRRS – April 11–12
  • Kuopio Motorcycle Show – April 25–26


Electrical work has already begun and is now ongoing actively, with the goal of getting the bike fully finished, running, and road-ready.
 
Work commitments and a busy schedule outside the garage have reduced the time spent on the bike lately, so progress over the past two weeks has been minimal.

I’ve been playing with the idea of adding some subtle decals to the bike.
Below are a few rough visual examples of what that could look like.
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At the moment my thoughts are roughly 70% NO / 30% YES when it comes to adding graphics.
Still thinking about it.

What do you guys think?
Should the bike get some light and tasteful decals, or should it stay as it is?

Do the ideas shown in the pictures work in your opinion, or does anyone have better suggestions?
Feel free to post comments and ideas — pictures are welcome too.



Last weekend the Pori Motorshow 2026 took place.

Due to the lack of proper competition classes, expectations regarding success were not particularly high.

Overall the Pori Motorshow was a fairly small event, and there are definitely a few areas where the organization could improve. I had a good discussion with the organizers about this, and they received the feedback well and considered it valuable. They mentioned that some changes will be made for next year, which is great to hear.

This year, as in previous years, the event only had three award categories:
  • Best Moped
  • Best Motorcycle
  • Best Car
The entire voting process was based solely on public votes via QR code.

Just like last year, the Best Motorcycle award ended up going to a 125cc supermoto... A nice bike for a 125, but in my opinion (and in the opinion of many others) changing decal kits and installing bolt-on parts isn’t really enough to deserve the Best Motorcycle award.

This once again caused some frustration, as there were several truly impressive full-size motorcycles at the show that had gone through long and serious build processes. And I’m not even talking about my own bike here.

The younger audience (roughly 15–18 years old) managed to mobilize votes much more effectively, or at least that age group clearly made up a large portion of the visitors, which naturally resulted in more votes.

The good news is that next year there will be separate classes for different types of bikes, and the public vote will only be one part of the judging process. A jury will also select their own winners independently.

For my own bike, the final result was 44th place out of 136 vehicles.

A total of 2,775 votes were cast at the show, and 21 of them went to my bike.
The event had approximately 13,400 visitors overall.

Here are a few shots from the show.
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After getting back home, we noticed that the front fairing had cracked into pieces.
It’s hard to say exactly what happened, but it was clearly damaged.
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A new one has already been ordered, and we’ll make sure to install it in a way that prevents any tension or stress that might have caused the issue.



Unfortunately I haven’t yet had time to continue working on the electrical system, and it now looks like the wiring work will have to wait until after the next show.



The bike will be on display at the following upcoming events:​

  • Jyväskylä Motorcycle Show – March 21–22
  • ACS – April 3–5
  • HRRS – April 11–12
  • Kuopio Motorcycle Show – April 25–26
 
2700 votes out of 13,000 visitors suggests they need a new method of casting votes.
I'm 74 years old and I myself understand how to use QR codes, but a lot of my contemporaries remain clueless or just find it too much hassle. Sort of like a restaurant near me that transitioned their menu to a QR code on the table. That lasted about 6 months before they just started giving out paper menus again.
 
2700 votes out of 13,000 visitors suggests they need a new method of casting votes.
I'm 74 years old and I myself understand how to use QR codes, but a lot of my contemporaries remain clueless or just find it too much hassle. Sort of like a restaurant near me that transitioned their menu to a QR code on the table. That lasted about 6 months before they just started giving out paper menus again.
I completely agree. I partly believe that there is also something wrong with the Finns themselves. :D
As a nation, we are generally not very active in giving feedback, development ideas, voting, or generally doing anything that is not mandatory.
It's sad at times...
 

Central Finland Motorcycle Show 2026 (Jyväskylä)

This weekend the motorcycle show was held in Jyväskylä, and I have to say — overall it was a very successful event.

The level of the custom builds was high. As usual, a large portion of the bikes were from the Harley-Davidson scene, but the overall quality across the board was impressive.

This time I also spent significantly more time talking with fellow builders and visitors.
It was great to see how much interest my bike attracted.

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Bike loaded up on Friday — heading toward Jyväskylä.


Bike unloaded and inside the exhibition hall.


Bike positioned in its display spot. This time the display platform and info board were left out at the request of the organizers, to maintain a consistent look across the exhibition. Didn’t bother me at all.


Visitors and people showing interest in the bike.



Results

In the end, I came back home from Jyväskylä with TWO awards:
  • 1st Place – Racer Class
  • Ladies’ Choice Award
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An amazing feeling from this experience overall.
It’s great to see that the work put into the project is noticed and appreciated by others.

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Current Status

No progress has been made on the electrical work due to scheduling constraints.
The shows themselves take time, especially now that they are happening every other weekend — and soon even back-to-back.

A new front fairing has arrived and is being gradually prepped and finished.

Since the show season continues until the end of April, the current personal deadline is to have the bike fully completed during May.
That includes final fine-tuning, getting the engine running, making the bike road-ready — and of course, the first test ride.



Bonus News

Finland’s largest custom motorcycle magazine Kopteri has reached out. (https://www.kopteri.com/)
A feature article about the bike, including professional photos, will be produced during spring/early summer and published in a future issue of the magazine.



The bike will be on display at the following upcoming events:​

  • ACS – April 3–5
  • HRRS – April 11–12
  • Kuopio Motorcycle Show – April 25–26
 
Who the hell came up with idea to have those carpets under the bikes, was the King Solomon himself sponsor of the event!?:laugh2::laugh2::laugh2:
Very good question. Persian flying carpets. :D

Apparently this has been around for a long time, but solid colors would make the bikes stand out better.
 
Very good question. Persian flying carpets. :D

Apparently this has been around for a long time, but solid colors would make the bikes stand out better.
It appears from the striping on the floor that the venue is a gym or some other type of sports venue. Probably trying to protect their floor from all those Harleys marking their spots. :D
 

47th American Car Show 2026

Another long exhibition weekend behind us.
This time the destination was the Helsinki Expo and Convention Centre for ACS 2026.


Prep & Arrival

Final polishing and “packaging” of the bike in Tampere — then loaded into the vehicle and off we go.
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Found the display spot, positioned the bike, and switched to "free weekend mode".
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At the Show

There was a lot to see throughout the weekend, and a total of 60,000 visitors came to admire the vehicles on display.

My bike also attracted a steady flow of interest at times, and I had several great conversations with visitors and fellow builders.
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Awards

The award ceremony took place on Sunday on the main stage — and once again, a trophy came home with the Honda:

MC Heaven – TOP TEN
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At this event, the top ten motorcycles were awarded collectively, without specific ranking positions.
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What’s Next

This Friday the bike will be taken to a local show here in Tampere — which will be the second-to-last exhibition of this spring.
Let’s see if there’s any home advantage in Tampere 😉


Upcoming Shows

  • HRRS – April 11–12
  • Kuopio Motorcycle Show – April 25–26
 

45th International Hot Rod & Rock Show ’26

Last weekend, a show was held here in Tampere — practically on home ground — where the Honda was once again on display.
The weekend felt noticeably lighter this time, as the event was basically right next door.



At the Show

The bike also got to enjoy its first proper sunlight in its current form.
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The Honda attracted interest at the show, and once again there were great conversations with several other builders who had brought their bikes to the event.
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This time my bike didn't win any awards — most of them went to Harley-Davidson builds.



What’s Next

There’s still one more show left for this spring, taking place next weeks weekend in Kuopio.

Right after that, starting Monday, it’s time for the final push to get the Honda fully completed:
  • Electrical system
  • New front fairing
  • Fluids
  • Getting the bike fully road-ready


Upcoming Show (last one)

  • Kuopio Motorcycle Show – April 25–26
 
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