Re:Windshield wiper motor woes

[trunnell@mindspring.com (Glenn Trunnell)]

I have had similar problems on non Triumphs, the first time the wiper
linkage was corroded and was binding.  Cleaning and lubrication fixed that.
the second time there was a problem with the wiper parking switch on the
motor itself.  Is the motor stalling and blowing a fuse ? If the mechanism
seems to move freely by hand you could measure the current draw and see if
the motor is drawing excessive current indicating a problem with the motor
itself.  Hope this helps.