A very common problem is electrolysis occurs on the points after sitting for a few years. The bike will run, but not very well if you don't change them. Filing them doesn't work either because the electrolysis gets so bad from sitting for so long. Save yourself the headache and replace them. I wish I had instead of wasting so much time trying to figure out why my bike wouldn't run well after going through everything. When I did replace them I was kicking my own a$$ for not replacing them sooner.