Honda Marine BF40A Owner's Manual page 42

5. STARTING THE ENGINE (TILLER HANDLE TYPE)
OIL PRESSURE
NORMAL: GREEN LIGHT ON
ABNORMAL: GREEN LIGHT
BLINKING OR OFF
8. With the engine running, check to
see if the green engine oil pressure
indicator light turns ON.
Stop the engine if the oil pressure
indicator light does not turn ON.
Check the engine oil level (see page
29). If the oil level is normal and
the oil pressure indicator light does
not turn ON, contact your closest
authorized Honda Marine dealer.
9. Warm up the engine as follows:
Above 41 "F (5°C) - run the engine
for 2 or 3 minutes.
Below 41°F (5°C) - run the engine
for at least 5
minutes at approximately
2,000 'pm.
Failure to completely warm up the
engine will result in poor engine
performance.