I'm intrigued with the fuel tap/petcock on the rhs. No original standardd 650 tank had it fitted on the rhs that I know of?
Regarding carbs, I can see airscrews but not if they have fuel screws also? If they airscrew only stick with them as they are best 650 carbs for performance and easiest to dial in.
Also, any idea what the rear shocks are off? They look like Marzocchi but with khi stickers.
petcock is on the left side...your probably confused by the non standard left side 4into1 pipe.
I replaced the shocks with these off a Zephyr 750 I had laying around. Original shocks were toast.
yes those are air airscrews on the carbs.