fuel issue

Hi everyone, I just bought a '77 XS650 in the fall. I'm not getting fuel to one of the plugs and can't seem to figure out why. I've cleaned the carb and changed the fuel lines. Any suggestions would be greatly appreciated. I'm new to working on bikes and don't have much knowledge.

So I’ve been having some carb trouble - I think I’ve finally got it sorted out, ridiculously high idle, replaced the diaphragms/slides - and I took my carbs apart yesterday... You know that rubber piece that goes in under the pilot jet? Well after I drained my carb, it was all swollen. Why is...

So my bike was running great the other day, but noticed some light repetitive knocking on the right side of the engine, which after inspection and talking with some friends of mine could be because I was using 87 octane and it may have been firing too early, so I'm now running 91. I'm noticing...