05-04-2021, 11:03 AM
Minami : Basically, straight-four is smooth if the four pistons move in the same way. I thought that running and feeling "muddy" would be a direction to change it little by little.
As a result, we shifted the valve timing between the 1st and 2nd cylinders and the 3rd and 4th cylinders, and while changing the timing little by little, we found a sensuous feeling such as the "misalignment" of combustion that people feel. It is.
I found the CB1100 Engineers talk using Google. But it is in Japanese so I used the translate button and then copied the above. Anyway, here is where I found it: https://www.honda.co.jp/tech/motor/engin.../episode1/
As a result, we shifted the valve timing between the 1st and 2nd cylinders and the 3rd and 4th cylinders, and while changing the timing little by little, we found a sensuous feeling such as the "misalignment" of combustion that people feel. It is.
I found the CB1100 Engineers talk using Google. But it is in Japanese so I used the translate button and then copied the above. Anyway, here is where I found it: https://www.honda.co.jp/tech/motor/engin.../episode1/