Ryobi 2 Stroke Trimmer | Carburetor FIX 

This trimmer would start, but would die when trying to pull the throttle trigger when running. A complete replacement of the carburetor, fuel lines, fuel filter, and air filter with a kit from Amazon, manufactured by Fuel Li will probably do the trick. (paid link)
Carburetor Kit: amzn.to/2Lr1ANb (Fuel Li - Out of stock unfortunately!)
BUT here is another one: amzn.to/3YUDDxV (Fit Best)
OR another one: amzn.to/3O8LgwI
PVC Safety Gloves:
amzn.to/35xWcyM
T25 Torx Screwdriver:
amzn.to/3skBAni