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To preface, I'm not the brightest crayon in the lunchbox sometimes so forgive me if I'm missing something obvious. I have a 1978 CB400A that needs a new brake rotor, and the only results I can find are a couple used listings on eBay (used rotors seem like a weird proposition to me) and a couple...
The problem is that when I put the left piston at top dead center (TDC), the LT mark on the rotor is about 9° past the index mark on the stator. I can see the piston rise and fall easily with a flashlight (plug out), so I'm confident I'm at TDC. The bike (1974 CB360K) is pretty stock with about...