the early berg lubrication system relies solely on a reed valve in the crank case that evacuates on the down stroke ,then it closes on the up stroke ,but any lubrication the crank receives comes from what little bit of oil the clutch can throw up toward the oil screen that sits at the top of the crank cases and is drawn in by the vacuum of the up stroke of the piston ? (i think ?)
no wonder they eat conrods :roll:
Q any one done any mods either successful or not .
Q has anyone had a duff reed valve ,if so what effect did it have ? i am guessing at lots of blue smoke?
regards
scrap
no wonder they eat conrods :roll:
Q any one done any mods either successful or not .
Q has anyone had a duff reed valve ,if so what effect did it have ? i am guessing at lots of blue smoke?
regards
scrap