1991 Johnson/Evinrude EI 60 thru 70 outboards Service Manual, Page 68Get this manual
Description of Fuel System 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 system
121 1The
pumps incorporate circuit "no oil" situation
that warns the operator of a
The 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 discrete fuel mixing circuits3On electric start models, mixture enrichment for cold starting is controlled by fuel primer solenoidWhen activated at the key switch, the solenoid diverts some VRO output directly to the intake manifoldsf51 65 manual start models use manual primer mixture enrichment