
Working on classic motorcycles comes with its share of challenges. Parts availability, lack of aftermarket support, missing or unreliable information, and the rambling of graybeards on a thousand owners' forums—often loudly and proudly incorrect rambling—can make working on even popular classics like Honda's 70s-era CB series bikes an uphill battle.
Thankfully, though, there are companies out there that produce parts for even the most obscure bikes. They hear the cries of masochists shadetree mechanics like me who wrench on bikes with parts made of pure unobtanium and produce those parts so that they're not so unobtainable anymore. Keyster is one such company, for example, and the Japanese parts maker has released a carb rebuild kit that should make the early-80s CB750F fans very happy indeed.