Yamaha F2F-28199-12 User Manual
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First-time operation
35
EJU32755
Engine break-in
NOTICE
ECJ00431
Failure to perform the engine break-in
could result in reduced engine life or even
severe engine damage.
could result in reduced engine life or even
severe engine damage.
The engine break-in is essential to allow the
various components of the engine to wear
and polish themselves to the correct operat-
ing clearances. This ensures proper perfor-
mance and promotes longer component life.
To perform the engine break-in:
(1) Fill the fuel tank with fuel in a fuel-to-oil ra-
various components of the engine to wear
and polish themselves to the correct operat-
ing clearances. This ensures proper perfor-
mance and promotes longer component life.
To perform the engine break-in:
(1) Fill the fuel tank with fuel in a fuel-to-oil ra-
tio of 25:1. (See page 31 “Mixing fuel and
oil” and “Filling the fuel tank” for fuel filling
procedures.)
oil” and “Filling the fuel tank” for fuel filling
procedures.)
(2) Launch the watercraft and start the en-
gine. (See page 45 for engine starting
procedures.)
procedures.)
(3) For the first 5 minutes, operate with the
engine at idling speed.
(4) For the first tankful of fuel, squeeze the
throttle lever slowly and operate at 3/4
throttle or less.
throttle or less.
(5) Fill the fuel tank once more with fuel in a
fuel-to-oil ratio of 25:1, and then operate
with the engine at any speed.
with the engine at any speed.
After completing the engine break-in, fill the
fuel tank with fuel in a fuel-to-oil ratio of 50:1
and proceed with normal operation.
fuel tank with fuel in a fuel-to-oil ratio of 50:1
and proceed with normal operation.
UF2F12E0.book Page 35 Tuesday, July 14, 2009 3:07 PM