Hedge trimmer runs then stops - Ryobi Factory-Reconditioned 30cc 18" Gas Hedge Trimmer ZRRY30550

SOURCE: Ryobi 18V Hedge Trimmer Blade Question

Just buy a file and push 3 or 4 down strokes down the same slope of the cutter toward the sharp edge. Never file on the flat top of the cutter, only on the slope. Support the frame using a saw horse or pick-up bed. The support makes the file cut the metal better. You can do the same thing with chain saws. You just need the file that fits the cutter. You just hold a consistant angle and count out the same number of strokes. Also, clean out junk between the moving parts, tighten any loose screws, and drop a few drops of 3 in 1 oil between the moving parts. Having things sharpened at a shop is inconvenient and expensive.

SOURCE: Hedge trimmer starts fine then stops after 5 minutes

Carburetor high speed adjustment ( screw nearest the filter ) open ( counterclockwise ) 1/2 turn.
Adjust again as needed to run when hot.
make sure the gas mixture ratio is as required.
Henry

SOURCE: RYOBI® GAS HEDGE TRIMMER Model ZRRY39500

i had the same model and i found that the spark plug that was shipped with it was rubbish I changed that and it ran fine for a week or so the it seemed to overheat and would not start until it cooled down or flooed its self again had to wait till drained in the end i chucked it away and got a sthil in stead not a single problem with in in years and still the same plug