TOHATSU BFT 75A Series Owner's Manual page 50

CONTROLS AND FEATURES
Periodic maintenance is required
when either the operating hours or the
time since last maintenance reaches
the prescribed limit. Therefore,
periodic maintenance may be
required based on the number of
months since the last maintenance
before the alert based on engine
operating hours displays (see
MAINTENANCE SCHEDULE on
page 91).
Reset the hour counter whenever
maintenance is performed, whether
based on the time interval or the
number of operating hours.
48
<Operating hour notification timing>
20 80 hours
hours after reset
Start of Notify
operation
Every 100 hours
100 hours
after reset
Notify Notify