New Motor break in time

What is the break in time for a new 50TLR

[boats.net]

General Engine Break-in Key Points

- All Models

Proper engine break-in can increase the life of
any engine. The Yamaha Engine Break-in
Procedure is designed to maintain engine
component temperatures within an acceptable
range to provide the best engine life expectancy.
The detailed engine break-in procedure is
explained in the Owner's Manual for each
engine. Some key points are as follows:
Use 50:1 premix with oil injected models for
the first 10 hours of operation. (25:l for premix
models.)
. Let the engine idle for the first 10 minutes of
operation.
Do not exceed 1/2 throttle (3000 rpm) for the
next 50 minutes.

DO NOT ATTEMPT PLANING
WITH A LARGE HEAVY BOAT.

Second hour

- Accelerate at full throttle onto
plane and reduce the throttle to 3/4 throttle
(4000 rpm). Allow about 10 minutes at 3/4
throttle for engine to cool internally. Vary
engine speed occasionally. Occasionally run
the engine at full throttle for short periods of
one minute each. Again, allow engine to cool
after each full throttle operation.
Third to tenth hour - Avoid operating at full
throttle for more than 5 minutes at a time.
Allow the engine to cool after each full throttle
operation, varying engine speed occasionally.
For the S225V & S250V EFI models,
avoid operating the engine at 2000 rpm
or below for more than one hour at a time.
After 10 hours - Operate the engine normally.
Use only straight gasoline for oil injection
models and premix (with the specified ratio)
for other engine models.

Additional points:

DO NOT RUN THE ENGINE IN NEUTRAL
FOR EXTENDED PERIODS. In neutral,
there is no load on the engine. Because of
this, some internal parts (e.g., the pistons)
will tend to move in a different pattern than
normal. This may result in parts wearing
incorrectly.
FOR S225V

& S250V EFI MODELS, DO
NOT RUN THE ENGINE FOR MORE THAN
ONE HOUR BELOW 2000 RPM (EVEN IN
GEAR). During break in, with both premix
fuel and oil injection, there will be excessive
oil below 2000 rpm. This excess oil will interfere

with proper oxygen sensor operation.