Honda BF75A Owner's Manual page 69

Warm up the engine as follows:
9.
−
Above 5°C (41°F) run the engine
for 2 or 3 minutes.
−
Below 5°C (41°F) run the engine
for at least 5 minutes at 2,000 min
(rpm).
Failure to completely warm up the
engine will result in poor engine
performance.
Before leaving the dock, check the
operation of the emergency stop
switch.
-1
STARTING THE ENGINE (R type)
69