While you wait for answers, we may have found some information which could help you.
Click here for Gas Running Runs
Have I killed my hedge cutter??????
how can I fix my hedgetrimmer PWR500HTA ?
Replacement top blade-Ryobi RHT 750?
help ryobi strimmer vibration and lack of power?
Ryobi RBC30SET fuel tank?
New head for a RYOBI petrol strimmer?