1981 Yamaha QT50, with just 700 miles on it. I recently took ownership of it and got it running. New top 60cc top end and new carb (fuel issues with original).
Runs great now and I took it for spin the other day and noticed the front wheel dragging. The hub was getting hot. I suspected bearings and pulled the wheel off. It turns out that one of the brake shoes actually de-laminated and the loose piece was getting trapped under the remaining pad, causing the massive drag. Simple fix - I ordered a set of brake pads (front and rear) but ordered the wrong size wheel bearing for the front (Yeah, I'm the kind of guy who orders things before understanding the real issues...).
Realizing that these particular bearings can't be used, I'm biased toward putting it back together with just the new brake pads so I can be done winterizing it.
The original bearings only have 700 miles on them and the grease is still there and very clean. Who would replace low mileage bearings in this case?
I've restored a number of older bikes and always did bearings as standard procedure, mostly because I didn't know the history. I'm curious what others do?