Originally Posted by Max...
Thanks Mart, TBH not sure what a reed valve is or looks like?? Can you help a bit more?
It's usually just at the back of where the carb bolts to the engine block ,
It's basically a one way valve for the fuel/air mix to go through after its been through the carb ,
Just a hole that's got a number of really thin spring metal flaps that open & close
It's supposed to stop fuel / air mix blowing back back into the carb
Sometimes one or 2 can stick shut , get gummed up or even get bent in the open position or even break off ,
usually quite easy to take apart & clean as long as your not rough with them .