Firstly, this is on my newly acquired daily beater motorbike. It is undoubtedly retro, being a Kawasaki GPZ400R of 1988 vintage but i apologise nonetheless if it having only two wheels is stretching it in this crowd (the RetroBikes forum that is kindly linked is pretty much unused now.)
So my bike is Japanese import and so has a 180kmh speedo. The action as it moves round the clock is smooth and nothing about its action indicates an issue except for it telling me i'm doing 100kmh at 30mph.
Can anyone think of anything obvious?
As far as i'm aware the tyres are the correct and original size / aspect ratio and it doesn't at first glance have one of those kmh - mph inline converter things that i thought could perhaps have been fitted
about face. Everything else works spot on with no damage or tampering to the clock set. I could just use stickers on the face but currently at about 70mph its well off the clock 
Any ideas or experience here?
So my bike is Japanese import and so has a 180kmh speedo. The action as it moves round the clock is smooth and nothing about its action indicates an issue except for it telling me i'm doing 100kmh at 30mph.
Can anyone think of anything obvious?
As far as i'm aware the tyres are the correct and original size / aspect ratio and it doesn't at first glance have one of those kmh - mph inline converter things that i thought could perhaps have been fitted
about face. Everything else works spot on with no damage or tampering to the clock set. I could just use stickers on the face but currently at about 70mph its well off the clock 
Any ideas or experience here?
