Evinrude 4906B 4HP 1969 Owner's Manual page 83

3-42 POWERHEAD
As soon as the engine starts,
be sure the water pump is operating.
water pump is operating,
be discharged from the exhaust relief holes
at the rear of the drive shaft housing.
During the first
DO NOT operate the engine at full throttle
(except for VERY short periods).
the break-in as follows:
a- Operate at 1/2 throttle,
ly 2500 to 3500 rpm, for 2 hours.
Operate at any speed after
b-
BUT NOT at sustained
another 8 hours of operation.
Testing a 35 horsepower
tank.
Exploded drawing
CHECK to
If the
a water mist will
10 hours of operation,
Perform
approximate-
2 hours
full throttle until
pressure
unit with a
of a
1.5
hp powerhead -- 1968-70, with principle
c-
Mix gasoline and oil during the break-
in period, total of 10 hours, at a ratio of
50:!.
d- While the engine is operating during
the initial period, check the fuel, exhaust,
and water systems for leaks.
e- Refer to Chapter 5 for synchronizing
procedures.
After the test
fuel line. Remove the engine from the test
tank. Install the engine hood.
fuel Operating an engine
overhaul.
per iod, disconnect
in a test tank fOllowing
parts
identified.
the
an