1998 Johnson Evinrude "EC" 90, 100C, 105C, 115, 150, 150C, 175 60 deg. LV Service Manual, P/N 520210, Page 29Get this manual
Break-In Procedure During the first 10 hours of break-in operation, you must use 50 :1 fueloil ratio in your fuel tank in Oil Injection SystemAfter the 10-hour break-in period, check to addition to the operation of the see that the oil level in the tank has changed, indicating that oil has been used before using unmixed gasoline in the fuel systemIf the hourssystem is disconnected, you must use 25: fueloil ratio in the fuel tank for the first 10
To help ensure long engine life and prevent serious engine damage, using additional oil in the fuel is mandatory during the first few hours of operation of: new engine used engine with new powerhead used engine with newly rebuilt powerhead INotel DO NOT operate motor out of waterWater pump can be damaged or engine can overheatINotel DO NOT operate engine at constant throttle settingChange engine RPM often Note Verify water pump operation by looking for steady stream of water at the water pump indicatorFirst 10 Minutes Operate idle Next 50 Minutes engine in gear at fast _ONLY._ _