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Machine tolerances of todays modern engines means easy break in, any 4 stroke gas engine should have lots of varied throttle speeds, no excessive idle or wide open throttle, after the initial hour or so, brief full throttle acceleration (from cruise NOT idle)followed by closing the throttle back to idle will help seal the piston rings. Every time you start a new day, be sure the fluids are full. Overheating is always bad as is lack of lubrication. Know what the "dashboard" indicators mean and pay atentiaon. If your very anal, "halving" the first oil and filtyer change (In this case 50~ hours) is a popular way of helping along the process.How do you break in the engine the best way? The owners manual says to not apply more than1/2 to 3/4 of throttle for the first 5 hours. But the dealer said very slow the first hour, the second hour you can just get it to plane for a few seconds. In the third you can apply 1/2 throttle and in the fourth 3/4 throttle. Fifth hour you can apply full throttle in short periods. He also said to not accelerate quick, but gradually.
I just finished the third hour and have follwed all his insructions, but why does the manual say 1/2 to 3/4 throttle and the dealer something else?
Does it hurt the engine if it's not propely broke in/ less effect or just shorter engine life?