Break-In; After Test Run - Yamaha F25C Service Manual

Break-in

During the test run, perform the break-in
operation in the following three stages.
1. One hour a at 2,000 r/min or at approxi-
mately half throttle
2. One hour b at 3,000 r/min or 3/4 throttle
and 1 minute out of every 10 at full throt-
tle
3. Eight hours c at any speed, however,
avoid running at full speed for more than
5 minutes
a b
È
0 1 2
È Hour

After test run

1. Check for water in the gear oil.
2. Check for fuel leakage in the cowling.
3. Flush the cooling water passage with
fresh water using the flushing kit and with
the engine running at idle.
6D55F11
c
10
S69J1240
Predelivery checks
1-10
1
2
3
4
5
6
7
8
9