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.
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.
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.
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.
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
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.
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.
As an extra, I also redesigned the information board and added legs so it appears integrated into the platform itself.
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.
