It depends on how "handy" you are. Have you worked on motorcycle engines before? If not you may be well advised to have someone that has help you out. There is no question that you can do it yourself here, but not everyone can pull it off as easily. You may need a few special tools, too. I would suggest getting a detailed manual for this bike before attempting to do it, though. Then you can read up on the procedures, and make a more intelligent choice. I used to have one of those back in 1980. I loved that bike, it would do, and go almost anywhere, and I did. I never had to work on the engine that deeply, though. It will involve undoing the OHV assembly, and there is the tricky part. Good luck. Stevo.