Hey everyone, I just picked up a pair of '78 CB750 supersports and I am looking to start on a cafe racer build. The CB750 is new to me, but I've been reading up on here a bit and have learned a ton about these bikes so far. I do have a few questions though.
I'd like to ditch the comstar wheels and go with spokes while keeping the dual disk brakes, but a search on here showed that the swap is not all that easy. If I read correctly, the disks are closer together with the older K model spoke wheel than with the comstar wheel. From the posts I've read here people say you need to swap out the whole front end, but is it possible to use the '78 front end and brakes with an older spoke wheel and just shim the disks and/or calipers to line up?
As for the rear wheel I see that the '76 F model had a spoke rear wheel with a disk brake, and I read on here that the sprocket holder was wider on the 77-78 models. The suggestions here were to use the '76 swingarm, but why can't you just use the '76 rear wheel with the '78 swingarm and some custom spacers to get everything to line up?
My other question is about carbs. One bike I bought has the stock '78 carbs with accelerator pumps, the other has 064A keihins, which appear to be the stock carb from the '76 F model (correct me if I am wrong). Which of these carbs should I use? Any benefit to one carb over the other?
