1998 Johnson Evinrude "EC" 2 thru 8 Service Manual, P/N 520202, Page 47Get this manual
20-Hour Check
INote Outboard Marine Corporation encourages all Johnson and
Evinrude owners to return their new engines to an authorized dealer for mechanical check
This check should be performed after approximately 20 operating hoursThe cost of this check should be figured at local dealer labor rates and paid for by the engine ownerThe 20-hour check should include: 1Drain and fill gearcase with recommended lubricantPressure and vacuum test gearcase if signs of water are present2Check torque on cylinder head screws and spark plugs Cylinder head screwsfollow torque sequence outlined in Powerhead, Section 4Loosen screw, one at time, turn before applying torque Spark plugsloosen spark plug turn before applying torque3Check all linkage adjustments4Check engine mounting hardware for tightness5Lubricate all grease fittings with OVIC Triple-Guard grease6Check entire boat and engine fuel system for signs of deterioration, damage, or leaks7Check all engine systems for signs of deterioration or problems