All around very good advice. To check if your carb is a Walbro, it should have the name embossed on the carb cover with the single centre bolt.

Just for the heck of it re your oil question, any good mineral or synthetic oil designed for 2 stroke air cooled engines and mixed at 32:1 will work just fine such as, Pennzoil, Stihl Ultra, Red Line, Royal Purple or Castrol to name a few.

Karol