Four Cycle Ryobi S - 430

[bogdaN]

I am working on a Ryobi weed trimmer and am wondering how you disassemble the engine, mainly how you would take the piston out. I'm having an issue with no compression, since it is a four cycle I can't see the piston through the exhaust port.

 

[bogdaN]

have that figure out,not easy but it is working.

 

[Richie F]

Would you like to share what you did ?

 

[bogdaN]

To remove piston with connecting rod i have to hammer out the shaft---witch was not easy.Found bad piston,the ring was stock,lot of carbon.Manage to remove and clean ring.Put everything together and work.Most likely oil was never changed and that did it.Dan