1994 Johnson/Evinrude "ER" CV 85 thru 115 outboards Service Manual, Page 57Get this manual
Description of Fuel System 1The VRol unit is combination mechanical fuel and oil pump, powered by crankcase pressure and vacuum pulses, which responds to various engine power settings by injecting the proper amount of oil into the fuel systemThe VRol pump incorporates circuit that warns the operator of "no oil" situation
f31 2The
carburetors meter and distribute the fuel consumedThey control engine speed and power output by varying the intake charge densityTo react correctly to wide range of operating conditions, the carburetors have several separate fuel mixing circuits6718