1997 Johnsoon Evinrude "EU" 50 thru 70 3-Cylinder Service Manual, P/N 507266, 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 addition to the operation of the Oil Injection SystemAfter the 1Q-hour break-in period, check to 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 system is disconnected or the engine is not equipped with 25:1 fueloil ratio in the fuel tank for the first 10 hourssystem, you must use a
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
First 20 Minutes Operate engine in gear at fast idle speed only Verify water pump operation; look for steady stream of water from the water pump indicator