Looks like you have a unit that is about 35-36 years old. You won’t be able to get those parts through Toro, so I suggest you contact Continental Motors directly to see if any of those parts are still available. This site might help you. http://www.continentalengineparts.net/. If they can’t help I would get in touch with a fork lift repair service in your area. Those engine were use in many of the outdoor lifts. Sorry I can’t be of much more help.