1999 "EE" Evinrude 70HP 4-Stroke Service Manual, P/N 787023, Page 28Get this manual
Break-In Procedure To help ensure long engine life and prevent serious engine damage, for the first 20 hours of engine operation for: new engine used engine with newly rebuilt powerhead, cylinder walls honed, and new piston rings installed
INotel INotel
DO NOT operate engine out of waterWater pump can be damaged or engine can overheat
DO NOT operate engine at constant throttle settingChange engine RPM oftenBefore starting engine, check oil level and add if necessary
First 20 Minutes Ope rate engine in gear at fast idle ONLYDO NOT exceed 1500 RPM Verify water pump operation by looking for steady stream of water at the water pump indicatorNext 40 Minutes Check engine oil level and add if necessary Operate engine in gear below 3500 RPM