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Author Topic: Project CB690 (KTM 690 engine in a CB550f frame)  (Read 19311 times)

Offline goodoltup

  • Posts: 118
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Re: Project CB690 (KTM 690 engine in a CB550f frame)
« Reply #120 on: Jan 31, 2019, 16:59:21 »
Just a couple more mock up shots.

Tomorrow, the steering stem comes in the mail. Soon it will be a roller!

Offline jordandogtown

  • Posts: 185
  • Washed up Weekend Warrior
Re: Project CB690 (KTM 690 engine in a CB550f frame)
« Reply #121 on: Jan 31, 2019, 17:11:33 »
That swingarm looks so sweet with twin shocks
"A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils, and lunatics" George Fitch, 1916

1979 CB750F Tracker (maybe?)

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1979 CB750F Part Out

Offline goodoltup

  • Posts: 118
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Re: Project CB690 (KTM 690 engine in a CB550f frame)
« Reply #122 on: Feb 01, 2019, 04:57:29 »
Made some slotted spacers to affix the footpeg brackets. They will be parted off to about 5mm, and welded to the frame to act as anti-rotation fixtures. I made the tubes on the lathe and manually cut the slot on the Haas.

Offline JustinLonghorn

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Re: Project CB690 (KTM 690 engine in a CB550f frame)
« Reply #123 on: Feb 01, 2019, 07:56:43 »
Nice to see the progress, man! Keep it up!
I'm going to eat your brains and gain your knowledge.

Into The Sunset, CB750 build

TT500 the Animal

Offline Maritime

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Re: Project CB690 (KTM 690 engine in a CB550f frame)
« Reply #124 on: Feb 01, 2019, 10:53:42 »
Nice work
The GL Rebirth: http://www.dotheton.com/forum/index.php?topic=68337.0
CX500 Low budget Bobber : http://www.dotheton.com/forum/index.php?topic=43617.0
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Offline goodoltup

  • Posts: 118
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Re: Project CB690 (KTM 690 engine in a CB550f frame)
« Reply #125 on: Feb 03, 2019, 05:59:32 »
Yesterday I made the centre stand stop. The cb550 uses a rubber bit on the mufflers to provide a stop for the centre stand while it's in the up position, and I won't have the original mufflers on this bike obviously so I needed to fabricate something else. I used a rubber appliance foot that screws into a tab on the frame, and a corresponding pad welded on the centre stand. It makes a nice, solid, quiet stop for the stand. I did run out of argon while welding though, so I may finish it with a stick.
« Last Edit: Feb 03, 2019, 06:01:25 by goodoltup »

Offline goodoltup

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Re: Project CB690 (KTM 690 engine in a CB550f frame)
« Reply #126 on: Feb 12, 2019, 07:21:43 »
Fuel pump installed. This is the fuel pump from a Honda VT750. I got the idea from some other thread I follow, but I can't remember the poster to give credit. The pump has an integrated filter and pressure regulator, with the output pressure being the same as the KTM. This way I won't have to put all that stuff inside the tank, and I won't have to have separate pump and regulator outside the tank.


Offline goodoltup

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Re: Project CB690 (KTM 690 engine in a CB550f frame)
« Reply #128 on: Feb 16, 2019, 04:28:10 »
Yeah, it is big. I'm hoping that it will just kind of disappear behind the engine and side covers. Maybe I will paint it black for camouflage. I will post some pictures soon of how it looks with the swingarm in, it is nestled in the space normally taken up by the monoshock.

Offline goodoltup

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Re: Project CB690 (KTM 690 engine in a CB550f frame)
« Reply #129 on: Feb 16, 2019, 19:50:59 »
First assembly of the rear wheel and shocks. I started painting the frame, just some spray can stuff that will give a protective coat during the build. After MOT and road trials, the whole bike will come apart to be bead blasted, painted, etc.