Re: Evinrude 25: New Motor Break-in
Never been run??? WOW - Even though, I would suggest replacing the waterpump impeller, they don't like sitting for so many years. Also keep an eye on the fuel pump and carb gaskets, they may be dried out and/or cracked from non-use.<br /><br />You need to run a 25:1 fuel/oil mix for about the first 10 gallons of fuel, after that 50:1 is fine. For the first 10 hours don't run at 1 set rpm more than 15 minutes. Not more than 1/2 throttle the first hour of operation. On the second hour of operation full throttle to plane the boat, then immediately reduce throttle to 3/4 or less. Next 8 hours full throttle operation permissible up to 15 minutes at a time. Keep an eye on the water output. If you got an owners manual with it, read it from cover to cover. NEVER disconnect the battery cables from the battery while the engine is running and I highly recommend using stainless steel ny-lock nuts rather than wing nuts to secure the cables to the battery terminals.<br /><br />-John
