RE: FCR 35 and Clarke tank
I have both carbs. The FCR 35 and Bill Blue's TM 33 bored to 34mm, plus the Clarke fuel tank. The FCR fits fine with the Clarke tank with one small modification. I used a rubber washer to hold the rear of the tank up about 1/4 inch. It was no big deal at all.
I know. You're going toask which carbI like best now.Thejury's still out. I'm sorting out some slight mid range bobbling with the Mikuni, but I like the choke andit's better off idle and tip in throttle. The FCR hits hard in the middle, or seems too, but the dynosuggests that they're both almost identical across the scale. It shows the bobble at tip in on the FCR, which I'm sure I can sort out with a little patience. I just bored the needle jet according to Bill Blue's suggestion, to make it aQO instead of a P8.( #36 drill, .106) Ishould have itback together in a few days to see how it runs with that upgrade.
Hope all that helps.