I’m trying to understand, what if any, difference there is between the engines on the 1979 CB750K DOHC bike and the 1979 CB750F DOHC bike (called the CB750F-A in some markets).
I was sure that I had read somewhere that the CB750F DOHC bike had different cam profiles and larger valves than the CB750K from the same year. However, I can find no definitive proof of this. Magazine reviews of these bikes from the time show the CB750F outputting a little more HP, but that could well be just as a result of the more efficient 4-into-2 exhaust system.
I actually own both bikes, so cosmetically the differences are obvious across both bikes, so it’s just the engine I’m asking about.
Any thoughts or comments are most welcome.
I was sure that I had read somewhere that the CB750F DOHC bike had different cam profiles and larger valves than the CB750K from the same year. However, I can find no definitive proof of this. Magazine reviews of these bikes from the time show the CB750F outputting a little more HP, but that could well be just as a result of the more efficient 4-into-2 exhaust system.
I actually own both bikes, so cosmetically the differences are obvious across both bikes, so it’s just the engine I’m asking about.
Any thoughts or comments are most welcome.
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