nebnampach
CB750 New member
Hello everyone, I just bought a 1979 CB750K with roughly 30k miles on it and I am brand new to the Honda CB scene. The stock exhaust was rusted out and the previous owner swapped it to a 4 into 2. The carbs were adjusted and cleaned to work with the new exhaust and he put maybe 10k miles on it with the new exhaust. The pipes are discolored near the baffles and I am wondering if this is normal or if this indicates an issue with it running too lean.
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