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My first project - 1974 CB360 K0

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Craizeehair:

--- Quote from: Bryanj on November 04, 2023, 05:42:01 PM ---Normally all the want is to check the frame and engine numbers are what you quoted and not altered

--- End quote ---
Thanks Bryan, sounds painless.

Craizeehair:
Well, I have finally had a new shed built, I still have to insulate and board it out but the bike is in there and I couldn’t resist having a little time with it. It seems that so far I have been quite lucky, the registration was a piece of cake and I now have a V5 for the bike, there have been no screws or bolts that have fought me and everything has come apart very easily.

I found the original owners manual under the seat, no toolkit unfortunately, a couple of stickers that show the bike from Michigan, all quite lovely so far…




Until I thought I would pop the carbs off and have a quick look see at the state of the bowls etc…

I must say at this point, I have ridden bikes on and off for approx 35 years, but my spannering has been limited, bolting on parts, silencers, brakes etc. My intention is to have a good go at this bike and get it back into half decent shape, something to learn on if you will. Certainly not a concourse restoration, we all have to start somewhere.

The bowls etc looked alright to me, nothing too scary there.


I checked the diaphragms and one had a pin hole, so that will need replacing but the thing that stopped me in my tracks was the damage to the bottom of the slides, I have an overwhelming sense of dread!! Can anyone advise what would cause this, if it’s common, normal (surely not) and if it’s terminal?





*Edited to add:
I also carried out a compression test, and had 140 on one and 125 on the other, stone cold, as the tank had been removed previously, I’m happy enough with that for starters.

Oddjob:
Those look to me to be screwdriver marks, most likely because the slide jammed in the carbs, maybe the carbs were all gummed up with old petrol and unlike the fours those aren't able to be lifted mechanically. So they inserted a screwdriver from front and back and tried to lever them out. May explain why the carb bowls are so clean, it's been cleaned out before.

IIRC if you need to replace the diaphragms, the slide comes with it. So no real harm done, check the carb body for similar marks though.

Craizeehair:
Ah, that makes sense, thank you. Looks like DSS has these in stock so I will get a couple ordered.

AshimotoK0:
You can get replacement pattern diaphragms from the likes of NRP. Not sure how well the originals will stand up to E10 fuel even if NOS.

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