[dustyv]

Hi Guru's,
My 745 has currently developed an instrument fluctuation.
Viz: Switch on ignition all (in particular) dial needles move, when engine started, they move some more.
I know that my speedo is running + 5 MPH more than it should, i.e. reads 35 but is actually doing 30, that is consistent throughout the speed range.
The most noticeable mover is the fuel gauge, if the tank is full, at the igniton on stage it read 3/4, started moves up to full.
Is there a simple solution?
Appreciate any and all advice.
Thanks.