1990 Johnson Evinrude "ES" 60 thru 70 Service Manual, P/N 507873, Page 108Get this manual
Power Pack The power pack has four basic functions: The power pack receives the charge coil output and converts it to direct current The power pack stores the direct current in capacitor The power pack directs the capacitor output to the ignition coil primary windings through series of electronic switches (SeR's)The SeR's are controlled by the sensor coi output The power pack incorporates the 5.L.0Wwarning system which limits engine speed to approximately 2500 RPM if engine temperature exceeds 2030 (950 e)Once the 5.L.0W'M warning system has been activated, the engine must cool to 1620 (72 e) and the engine must be stopped before normal operation can be resumed1M