1978 Johnson 4HP outboards Service Manual, Page 12Get this manual
LUBRICATION CHART LUBRICATION POINT LUBRICANT OMC Anti-Corrosion Lube OMC Anti-Corrosion Lube 60 days FREQUENCY (PERIOD OF OPERATION) FRESH WATER "SALT WATER 30 days
1Steering Handle Pivot,
Detent, and Clamp ScrewsSee Figure 2-2 2Cam Follower, Carburetor Linkage and Choke Rod See Figure 2-3 3Motor Cover Latch See Figure 2-4 4Gearcase See Figures 2-5 and 2-6
OMC Anti-Corrosion Lube OMC HI-VIS Gearcase Lube Capacity Standard 1.28 oz(38mL) Weed less 3.4 oz(lOOmL)
60 days Change after fi rst 20 hours of operation and check 50 hours of operationAdd Iubricant if nece ssaryDrai and refill every 100 hours of operation or once each season, whichever occurs first