I don't think the starter motor itself would make a whining sound.my GT1000 had a bunch of work done to it such as a new rectifier and new timing belt tensioners and bearings/pulleys
the issue now is that the starter is whining and turning slowly and drains the battery very fast
any idea what the issue is?
Yep it’s all I needed... Thx guys...I don't think the starter motor itself would make a whining sound.
But the sprag does - when it is starting to bind.
The added friction of the binding sprag causes excess current draw in the starter motor.
The motor has more work to do and so it draws more current.
Most batteries are not "sized" amp-hour-wise for this added load.
They are not able to deliver the high current draw and so the motor turns slowly and the battery is drawn down.
Also, as the starter motor turns, carbon builds up on the commutator and increases the current draw.
Hope This Helps.