hi all, my 03 jdms main speedo doesnt tell the correct speed, its pretty badly out, it read 23 when im doing 30, 58 when im doing 70 and 70 - 90 mph and so on, the digital one in the computer reads preety much bang on, i was wondering is it possible to get the main speedo recalculated without affecting the digital one? i presume that it was recalculated when it came of the boat to pass the test so prob didnt get done properly then? ive got the true speed of what im doin from my sat nav so would be nice to get it sorted
Cheers
Russ