I don't know what kind of motor you have on that mower. Let me know that and I will tell you what to look for that causes this problem. Realy easy fix if you can tell me the motor maker. B/S have a drive post in the middle of the recoil head that has 5 ball bearings that lock in place to turn the fly wheel. They may be sticking. Try spraying w/d 40 in the hole in the top of the drive post. If it is a toumckie? there is a plastic finger in the recoil top that may be sticking. Take the top off the mower and clean the trash out of the top and try pulling the rope with the top off. there should be two fingers that come out when you pull the rope. Sure hope this helps.
chetsbro1@cs.com, August 2004