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Author Topic: CB650 Swedish Cafe  (Read 5100 times)

Offline DanielK

  • Posts: 53
CB650 Swedish Cafe
« on: Jan 14, 2016, 03:27:43 »
This is my first motorcycle. So why not enter with style :)
Got it from my father in a semi poor condition. Blue smoke and rubber brakes.

First step was to put on some new valve seals and steel braided brake lines. I got my learner permit and got a few hours in the sadle.
My plan is to make it cafe:ish during winter. Poor valve seals has left thick black layer in the cylinder head. So I pulled it off snd threw it in a washing mashine at work and then a couple of hours in the ultrasonic cleaner.
This is after washing. Ultrasonic cleaning will be finnished today.



Made some adjustments to the front fender


All electrics will be new.


Engine will get lapped valves and new piston rings. For the gearbox I've got som NOS gears so it will not pop out of 5th


Then there will be som new clipons and switches.



« Last Edit: Jan 14, 2016, 04:22:20 by DanielK »
--Daniel
CB650 -80

Offline DanielK

  • Posts: 53
Re: CB650 Swedish Cafe
« Reply #1 on: Jan 14, 2016, 09:27:10 »


The ultrasonic almost did the job. Need some manual work also. Next step is to resurface it in the mill.
--Daniel
CB650 -80

Offline Tim

  • Administrator
  • DTT SUPPORTER
  • *
  • Posts: 12878
    • DO THE TON
Re: CB650 Swedish Cafe
« Reply #2 on: Jan 14, 2016, 12:24:16 »
Welcome!
"Quality . . . you know what it is, yet you don't know what it is. But that's self-contradictory. But some things are better than others, that is, they have more quality. But when you try to say what the quality is, apart from the things that have it, it all goes poof! There's nothing to talk about. But if you can't say what Quality is, how do you know what it is, or how do you know that it even exists? If no one knows what it is, then for all practical purposes it doesn't exist at all. But for all practical purposes it really does exist."

Offline DanielK

  • Posts: 53
Re: CB650 Swedish Cafe
« Reply #3 on: Jan 16, 2016, 06:09:52 »
--Daniel
CB650 -80

Offline DanielK

  • Posts: 53
Re: CB650 Swedish Cafe
« Reply #4 on: Jan 27, 2016, 12:37:53 »
Now the head is flat and smooth.



Next up is lapping valves:)
--Daniel
CB650 -80

Offline DohcBikes

  • Posts: 2384
  • Fuck You.
Re: CB650 Swedish Cafe
« Reply #5 on: Jan 27, 2016, 12:44:05 »
Lapping new valves is unneccessary if you are going have the seats machined. This is an antiquated process that reduces the life of the valve and the seat.

You might find that front fender to be a bit short to keep rain and stuff from coming up, but thats a minor issue imo, and I like short fenders.

You need to inspect and measure your shift forks and drum, not just the gears. Popping out of gear is usually due to worn forks, not worn gears.

Welcome to DTT, lots of cb650 projects popping up!
« Last Edit: Jan 27, 2016, 12:47:14 by DohcBikes »
burning bridges sometimes light the most productive paths

Offline DanielK

  • Posts: 53
Re: CB650 Swedish Cafe
« Reply #6 on: Jan 28, 2016, 05:01:41 »
Think I'll order a drum and forks. Nice to have som NOS-parts just in case :)

Tank is primed an ready for filler.
--Daniel
CB650 -80

Offline datadavid

  • Posts: 1363
Re: CB650 Swedish Cafe
« Reply #7 on: Jan 28, 2016, 06:12:30 »
Lapping new valves is unneccessary if you are going have the seats machined. This is an antiquated process that reduces the life of the valve and the seat.

You might find that front fender to be a bit short to keep rain and stuff from coming up, but thats a minor issue imo, and I like short fenders.

You need to inspect and measure your shift forks and drum, not just the gears. Popping out of gear is usually due to worn forks, not worn gears.

Welcome to DTT, lots of cb650 projects popping up!
If the guides are good and seats+valves are fresh there is really no need to machine them is there?

Offline hillsy

  • Posts: 4117
Re: CB650 Swedish Cafe
« Reply #8 on: Jan 28, 2016, 06:38:03 »
I don't see anywhere where he says he's getting new valves.

Offline dmable44

  • Posts: 214
Re: CB650 Swedish Cafe
« Reply #9 on: Jan 28, 2016, 15:17:31 »
Nice to see another CB650 on here!
'81 CB650