My stx 550 speedo reads high 7km/hr so if its says you are at 100kms/hr you
are really doing 93kms have checked with GPS . Has anyone else had this ? seems to be about the same at all speeds maybe a bit more out over 110 ...
Has anyone changed the serpentine belt and pulleys? I have a noise and think it is the alternator clutch pulley.You can hear the noise when cold mainly when you rev engine and take foot off acc. quickly. looks quite difficult to get to.My stx550 has done only 89,000kms.
