Left side 750 case and lower rear 1973 750 & Combat style reed valve breather

Eliminates positive case pressure and oil leaks. Easy installation with no modifications or machining necessary. Fits 750 left side case cam breather vent, 1973 750 & Combat, aftermarket lower left case mount, MK2 850 timing case, MK3 elect start timing case with the original Prestolite or aftermarket starter (1/2″ hose barb is for Mk3 only) Run hose back to oil tank.(more info).