Break-In; After Test Run - Yamaha F15B Service Manual

GEN
INFO

Break-in

During the test run, perform the break-in
operation in the following 4 stages.
1. For the first hour of operation a: Run the
engine at 2000 r/min or at approximately
half throttle.
2. For the second hour of operation b: Run
the engine at 3000 r/min or at approxi-
mately three-quarter throttle.
3. For the next eight hours of operation c:
Avoid continuous operation at full throttle
for more than five minutes at a time.
4. After the first 10 hours: Operate the
engine normally.
0
1
å Hours

After test run

1. Check for water in the gear oil.
2. Check for fuel leakage in the cowling.
3. After a test run and while the engine is at
idle, flush the cooling water passages
with fresh water using the flushing kit.
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General information
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