the wiper motor in 72 240 is operating very slow and even slower in fast setting.Any ideas or just replace motor?

They seem to have two speeds slow and slower . Usually the trouble is the pivets where the wypers connect to the linkage. The rubber seal fails and water and dust gets into the pivet . You need to remove the wyper motor with the linkage and pivet attached . Check the linkage ends for wear and take the pivet apart and clean and grease them . I used white lube. If the parts are badly worn and are loose it will cause everything to bind. This is what usually the problem is. Not the motor , the 30+ year old systime. Gary

hey beandip, thanks for the suggestion,sounds good to me. I will look in that area tommorrow,thanks again

had the same problem. mine used to stay at same rpm's and 'chatter' in fast speed.

tried lubing pivots and linkage, no joy.

took it apart and found burnt windings and 1of3 brushes stuck in holder.

thought about the honda motor swap, but didn't want to cut up my bracket.

i wound up contacting john@baddogparts.com (great to deal with BTW) and bought a used motor for $45($35+s/h). works 1000% better than mine.

they're still not fast, but now at least much closer to original.

hope this helps.

bart