ROTO Engine Carb, Worbro

Hi Guy's.
Need a bit of help with the carb, engine will not draw fuel from tank.
Taken carb off, can't blow into fuel inlet, Blocked ?
Remove casing with inlet tube on it one screw, can then blow into inlet tube, can see the little valve, paper flap, that,s opening and closing as i blow.
Refit casing, can't blow in ?!... umm...remove low and high speed jets counting turns open throttle, still cant blow through fuel inlet tube....

Ummmmm....Help
Any advice would be appreciated

Simon

Hi simon
A likely cause will be the carb valve/s stuck - 3 options
1 - pressurise the fuel feed while flicking the engine
2. - remove plug and prime the engine - When it fires, the increased crankcase pressure pulses may kick start the pump
3. - Remove the carb side with the single screw and unstick the pump flaps

Thanks, did that and removed the needle valve on the other side, cleaned refitted.

Now it sucks up fuel on engine rotation....Yippee, stuck needle valve i think
fiddly or what !!

Ta

Simon

From now - always keep the fuel system wet. store with about 1/4 tank.

have a look at this document to understand the Walby Carby

Thank you very much


Simon M