JC027 XL600V Carburettor inspection and cleaning part 1

UPDATE! UPDATE! UPDATE! UPDATE!
I have just found this video:
• How does CV carburetor...
I've kept thinking about those little channels and I had a constant fear what if any of them are blocked by something. Now I am convinced to take apart the carb again and clean those using the method mentioned by the guy.
First of all:
ANY OF MY VIDEOS ARE INTENDED TO SHOW WHAT I HAVE DONE DURING DOING THE MAINTENANCE ON MY TRANSALP. I don't take any responsibility if you make some damage following my procedure.
This video doesn't cover a full overhaul or disassembly. It just goes deep enough to cover the most of the needs of an average rider (like myself).
I had constant issues with my carb sync so I have decided to check what is going on:
- You can see that there are quite many dirt under the diaphragm. Today I think those are foam particles from the sub air filters (video will be uploaded soon).
- Also it is shown that the needle in the first carb piston was not fixed by the needle holder (shame on the garage who has done the maintenance last time and charged me).
The genuine Honda O-ring for the float chamber is extremely expensive. I am trying to find a substitute part so the final steps were not filmed and the carbs were not tested yet.
To finish the procedure you just have to make the steps in reverse order.

[@prasobhprathapan3787]

Could you share the detials of the diaphram, like diameter, possibility of using other bikes same carberatour

[@ST-di6nl]

Hello! I don't have any spare one on hand. The new ones are already built in the carb and the old ones are already thrown away. I went through the forum but I couldn't find any dimension.
Also I am not at that level to be able to tell if there is any alternative carb on the market.
Sorry that I couldn't help, hopefully somebody will provide details. Good luck