I started the bike yesterday (2000 ST1100) and heard a squealing noise at a specific rpm (1300-1400). I have heard this noise before, but never that bad. Went to the front of the bike, the noise was less obvious. The noise was worse on the left hand side. I dug out a steel rod and pressed one end on the alternator and the other to my ear. It sounded rough.
I'm thinking bearing replacement. How difficult is it to replace the bearings? All I can find is info regarding replacing the 28 ampere with a 40 ampere unit.
Also, is the alternator shaft unit that stays attached lubricated by engine oil, or is it possible that those bearings need replacing as well while I'm there?
Thanks in advance.
I'm thinking bearing replacement. How difficult is it to replace the bearings? All I can find is info regarding replacing the 28 ampere with a 40 ampere unit.
Also, is the alternator shaft unit that stays attached lubricated by engine oil, or is it possible that those bearings need replacing as well while I'm there?
Thanks in advance.