Author Topic: Project Centura  (Read 1507 times)

0 Members and 1 Guest are viewing this topic.

Offline JamesH

  • Hot Shot
  • ***
  • Posts: 264
Project Centura
« on: June 27, 2025, 09:02:07 AM »
Thanks to all those who helped identify the wheels in my latest project. Starting a new project thread here now to document the recommission.

I acquired this bike a few weeks ago from the nephew of the previous long term owner, who passed away a couple of years ago.

As I understand it, the bike was last used in the early 90’s and then mothballed.

The PO rode the bike extensively throughout the Uk and Europe, and covered most of the bikes 60k miles.

Photos as purchased…






Sent from my iPhone using Tapatalk Pro

Offline JamesH

  • Hot Shot
  • ***
  • Posts: 264
Re: Project Centura
« Reply #1 on: June 27, 2025, 09:04:32 AM »







Offline JamesH

  • Hot Shot
  • ***
  • Posts: 264
Re: Project Centura
« Reply #2 on: June 27, 2025, 09:06:07 AM »
Pre-workshop 1st bath..







Offline denward17

  • Master
  • *****
  • Posts: 1,772
Re: Project Centura
« Reply #3 on: June 27, 2025, 10:00:43 AM »
Interesting and nice looking bike!

Following for updates.  What's your plan for recommission?

Offline JamesH

  • Hot Shot
  • ***
  • Posts: 264
Project Centura
« Reply #4 on: June 27, 2025, 11:08:17 AM »
Plan is to gently recomission the bike, get her running and assess the state of the engine.

Then it will be a full strip and rebuild (not sure how far I’ll go with the engine as its running state will determine that).

Plan will be to try and pay homage to the history of the bike and rebuild as-is with as much of the existing components / accessories as possible (the fairing will stay).

But I’ll likely apply a few modern twists / upgrades….watch this space…
« Last Edit: June 27, 2025, 11:20:21 AM by JamesH »

Offline MauiK3

  • A K3 is saved
  • Old Timer
  • ******
  • Posts: 4,800
  • Old guy
Re: Project Centura
« Reply #5 on: June 28, 2025, 07:45:54 AM »
Watching and following.
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline BenelliSEI

  • Really Old Timer ...
  • *******
  • Posts: 11,218
  • 1969 cb750
Re: Project Centura
« Reply #6 on: June 29, 2025, 05:26:36 AM »
Hello James! Cool find and will be watching with interest.

Offline Stev-o

  • Ain't no
  • Really Old Timer ...
  • *******
  • Posts: 34,900
  • Central Texas
Re: Project Centura
« Reply #7 on: June 30, 2025, 07:30:52 AM »
Wow, that cleaned up real nice. 

If it was last used before ethanol, the fuel system could be in better shape than expected.   But, of course depends if it was put away "wet" or not.  But typically when vehicles are "mothballed" they drain the fuel.

Good luck!
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline MauiK3

  • A K3 is saved
  • Old Timer
  • ******
  • Posts: 4,800
  • Old guy
Re: Project Centura
« Reply #8 on: June 30, 2025, 07:43:39 AM »
Nice project, is that a stock swing arm?
Looks like the side cover wing is pointing to the rear, common mistake.
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline JamesH

  • Hot Shot
  • ***
  • Posts: 264
Re: Project Centura
« Reply #9 on: July 01, 2025, 07:19:39 AM »
Thanks for the comments. It’ll probably be a ‘slow burn’ project, so I’ll update in stages as progress is made.

The tank is sadly shot internally - definitely stored with ethanol fuel and has rusted badly. I have a few other tanks to chose from.

Rear swingarm is an aftermarket box section - not 100% convinced it’s any better than the stock swingarm, which in my experience is pretty rigid for what it is. If a calfab swingarm landed in my lap somehow then it would be a nice replacement (flying pigs anyone lol).

More as it happens…


Sent from my iPhone using Tapatalk Pro