Recently acquired a Ryobi 2 cycle gas blower that previous owner couldn't start. Changed fuel lines, fuel filter, primer bulb, spark plug and cleaned Wyc-8 Carburetor(Walbro). Started and ran strong first or second pull after reassembly. Ran for 10 minutes total, at idle and WOT, then shut it off. Came back 20 minutes later, starts, idles for 4 or 5 seconds then speeds up and dies. Opening throttle only speeds up process. I've cleaned the carb 4 times. Changed fuel lines twice. A little dirty looking inside engine(looking through spark plug hole). I'm stumped
Garden - Ryobi
Answers & Comments
You'll need to verify you have spark. Could be ignition module fails at operating temperature. Let unit cool for a couple hours. If it starts and runs for few minutes then dies, check spark... no spark then failing ignition module.
If spark checks out ok then likely carburetor or crankcase leak. Carbs are inexpensive, replace. If still same problem then test for crankcase leak (search WWW for how to).
The replacement carbs are cheap and I would go that route after all the work you have done for nada.
Good luck finding a replacement carb