Thee is oil pump between the tank and the outlet,you can't blow through the oil pump. More likely you need a new oil pump,but you will need to remove the oil pump and check for any blockage, if no blockage, then replace the oil pump.http://www.shop.flymo.co.uk/chainsaw/woodshark/catalogue.pl?path=316111:600076&model_ref=2442124&page=2
can't get to the pump. Made a tool to remove centrifugal clutch [needs to come off to take off alloy plate]. Used a Snapon hammer ratchet - but found insufficient inertia as the electric motor spins freely with no apparent means of stopping the shaft from spinning. Complete stymie !
the Snapon tool is a battery operated impact wrench - as I said before there is no inertia in the shaft - perhaps there is a cunning way of locking
the shaft ?
hasn't got a fly-wheel it's an electric motor
the centrifugal clutch has not got a separate nut, but is itself threaded -
jamming it would be pointless. The only accessible part of the armature
is a plastic cooling fan, which would shred if I attempted to jam it.