Hi Grumpy, thanks again. With the idle speed adjustment all the way in, it revs higher and does not stall, so it does seem like the idle system is not functioning.
By chance i took a look at my Hitachi blower and the carby on that (Walbro WYC-27) seem near idential to the Ruixing one on the Ryobi..
Will changing the diaphragm and gaskets perhaps solve the problem?
