Speedo is 19% over reading because the gearbox has the wrong pinion/worm ratio (cable is turning at 1445 TPM!). I'lll be changing them when the ones I have on order arrive, but hope to do it without hauling the engine out.
QUESTION: Do I have to remove the whole speedo housing, or can it be done just by removing the pinion housing (A) and the blanking plate (B)?
Yes, I know it'll be a pain of a job (move the radiator out of the way, undo engine mount/braket, lift that side of the engine a little etc) but thatnkfull it's a steel flip front so that should give me a little more access to work in.
Cheers,
Colin.
P.S.
SImplest way to sort it would be to ditch the spedometer and replace it with a digital one, but I really want to keep my old center speedo.