1998 Johnson Evinrude EC 5 thru 15 HP Four Stroke Service Manual, Page 34Get this manual
Break-In Procedure To help ensure long engine life and prevent serious engine damage, use OMC Four-Stroke Outboard Break-in Lubricant during the first 20 hours of engine operation for: new engine used engine with new powerhead used engine with newly rebuilt powerhead, cylinder walls honed, and new piston rings installed
I Note DO NOT operate motor out of waterWater pump can be damaged or engine can overheatINotel DO NOT operate engine at constant throttle setting Change engine RPM oftenINotel Before starting engine, check oil level and add if necessary
First 20 Minutes Operate 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 indicator
Next40Minutes DO NOT operate engine above
throttle
DO NOT hold constant throttle setting Change engine speed every 15 minutes Verify water pump operation Check engine oil level and add if necessaryINotel With easy planing boats, use full throttle to quickly accelerate boat onto planeImmediately reduce throttle to one-half as soon as boat is on planeBE SURE boat remains on plane at this throttle setting