Author Topic: Project CBR  (Read 2711 times)

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Offline NichB
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Project CBR
« on: July 12, 2019, 16:22:06 PM »
Photos to follow

Job One CARBS

Body work is off the bike as is the airbox, no battery

Carbs are off and have come apart easily enough

There is evidence of someone having been here before with some rounded fasteners to carb tops and bottom or loose

Going to my local supplier and see if I can get some stainless cap bolts instead of the chocolate ones made by Honda

I did not separate the carbs

I did notice one damaged and one missing vacuum cap, which needs rectifying, presume these are just generic , if any one knows a good cheap source?

Top of engine is suffering from oxidisation, needs treating, as do all the rusty bits

speak soon

NichB :thumbs:

Offline Bill

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Re: Project CBR
« Reply #1 on: July 12, 2019, 18:38:45 PM »
Plenty of parts on E-bay, thay seem to buy them to part them out :traurig005:

Offline NichB
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Re: Project CBR
« Reply #2 on: July 12, 2019, 20:31:50 PM »
Havnt seen specific vacuum blanking caps, must be generic ill have a look on google for carburettor parts


Offline NichB
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Re: Project CBR
« Reply #4 on: July 12, 2019, 23:34:09 PM »
 Lovely links thanks to Bill

 :thumbs:


Offline Bill

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Re: Project CBR
« Reply #5 on: July 13, 2019, 08:00:09 AM »
You could find the 1987 CBR600 and CBR1000 workshop manuals could help, if you cant find them to download give me a shout and I can send them to you ( pdf files)Bill

Offline robvangulik

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Re: Project CBR
« Reply #6 on: July 13, 2019, 09:53:54 AM »
Don't forget the VFR750, early models, mostly concerning wheels, frame and frontfork parts! The '87/'88 1000f for fairing seat and tank, AND those small rubber caps for the vacuĆ¼m connections on the carbs.
The 600 doesn't have so many parts in common....

Offline NichB
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Re: Project CBR
« Reply #7 on: July 13, 2019, 10:32:36 AM »
Good shout Rob

I shall widen my search

The exhaust from a distance looks bad, and I have been putting off a closer inspection, however late last night I rubbed a down pipe with some wire wool and it was like new underneath,  smile1004swing

Offline NichB
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Re: Project CBR
« Reply #8 on: July 13, 2019, 11:14:16 AM »
 Are the front brakes the same as VFR?

Offline NichB
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Re: Project CBR
« Reply #9 on: July 13, 2019, 19:55:39 PM »
Everything seems to be coming apart easilt so far only two fasteners that needed cutting off to get the metal shrouds off the exhaust. Silencers are solid but rusted in places.

All going well and then disaster

Left hand down pipe has been squashed not completly flat but not good.

Tried to remove lower mount of radiator and its solid time to keave garage.

Offline robvangulik

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Re: Project CBR
« Reply #10 on: July 14, 2019, 00:25:58 AM »
Let it soak in a good rustbuster for a few days....

Offline xpd153

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Re: Project CBR
« Reply #11 on: July 14, 2019, 02:19:31 AM »
Are the front brakes the same as VFR?

87 CBR750FH has fixed brake discs and two hanger pins caliper.
88 CBR750FJ has floating brake discs and single hanger pin caliper.

VFR750F(RC24) has similar front brake. As like CBR750, it has type-1(fixed brake disc) and type-2(floating brake disc)
Each bracket and caliper are compatible. But VFR has different shape of piston and smaller cylinder.
For more details, please use search function. This forum has several articles about CBR  brake.

Offline NichB
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Re: Project CBR
« Reply #12 on: July 20, 2019, 14:47:39 PM »
Thank you for the info

Week two

Had the dent in one of the downpipes fixed by my friendly local welder who also filled a small hole near the collector

The pipes are solid and ill prime them and paint at some point

Carbs are now ready to go in the ultrasonic cleaner do that next week

I need to replace the float bowl seals as they are all hard and show signs of leaking

The only place i have found that do these are NRP

The oil lines show signs of rust, are they tbe same as a cbr1000?

Brakes look badly corroded and need rebuild thats the next job

Nichb


Offline Bill

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Re: Project CBR
« Reply #13 on: July 20, 2019, 16:07:22 PM »
Coming along matey, the ultrasonic is always the best tool for carb cleaning.Bill

Offline NichB
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Re: Project CBR
« Reply #14 on: July 24, 2019, 19:01:39 PM »
I have seperated the carbs. The bar that they are attached to was real bugger to undo, my friendly  custom chop frame builder String came to my aid. Check out raw steel custom frames for their work. The carbs have come up nice clean and i replaced the seals on the bottom .

I found a set of cheap cbr1000f clocksand swapped out the speedo. I then cleaned yhem and reattached to bike, if you do this try and be as clean as possible, i left a big thumb print slap bang in the middle so it all had to come apart again. I left the speed sendor attached and hanging loose at the moment.

Brakes are really bad, need to think which is the most cost effective option

Time to leave the garage

 smile1004up