It depends on whether you are interested enough to go through the learning pain, sporter. It may be very easy to fix, or less likely, the seat may be damaged and you may have to go hunting for a replacement part - possibly a second-hand one. The average expert will not be very enthusiastic about working on an old Tecumseh carburetor, so you might pay a fair amount of money for not very much success. Hence if you are interested in learning about engines, fix it yourself. If you regard the mower as a collector's item and you believe it is important enough to justify professional repair costs, I suggest you post pictures of it and discuss its collectability with Outdoorking members. There tends to be quite a lot of interest in cylinder mowers.