Mercury 15 TwoStroke, Operation, Maintenance & Installation Manual

Page: 41 / 108

MIXING PROCEDURE
Pour the full amount of oil, along with one gallon of gasoline, into an approved
container. Shake the two together until they are thoroughly mixed. Add the
remainder of gasoline and shake container to ensure mixing.
Engine Break‑In
ENGINE BREAK-IN FUEL MIXTURE
Use a 1:25 oil/gasoline mixture in the first tank of fuel.
ENGINE BREAK-IN PROCEDURE
Refer to
Operation
‑
Engine Break
‑
In Procedure
for correct break‑in
procedure.
Filling Fuel Tank
!
WARNING
Avoid serious injury or death from a gasoline fire or explosion. Use caution
when filling fuel tanks. Always stop the engine and do not smoke or allow
open flames or sparks in the area while filling fuel tanks.
Fill fuel tanks outdoors away from heat, sparks, and open flames.
Always stop engine before refilling tanks.
Do not completely fill the fuel tanks. Leave approximately 10% of the tank
volume unfilled. Fuel will expand in volume as its temperature rises and can
leak under pressure if the tank is completely filled.
FILLING FUEL TANKS PERMANENTLY INSTALLED
Slowly pour the correct amount of oil along with gasoline as the tank is being
filled.
FILLING PORTABLE FUEL TANKS
Remove the portable fuel tanks from the boat to refill them.
Pour the full amount of oil, along with one gallon of gasoline, into the fuel tank.
Mix thoroughly, then pour the remainder of gasoline into the tank.
PORTABLE FUEL TANK PLACEMENT IN THE BOAT
Place the fuel tank in the boat so the vent is higher than the fuel level under
normal boat operating conditions.
FUEL AND OIL
eng
31