Welcome, The parts you are looking for are still attainable. The thing that you need to look at the most is the throttle shaft in the carb. Most of the carbs used on these engines had a Walbro built carb. Unlike most other carbs where the brass shart wears out first, The carb housing will give way first on these. Tecumseh still provides a repair kit(although bit pricey) $25-27. A walbo kit is about $8-10) Or a new carb from walbo aftermarket is about $100.00 .Hope this helps (if you need part numbers- post again and I will help you)