Warming Up The Engine - TOHATSU M 40D2 Owner's Manual

46
ENGINE OPERATION

2. Warming up the engine

Before driving the boat, let the engine
run at low speed for approximately
three minutes to let it warm and
allow the oil to circulate through the
machine. If the engine is not warmed
up beforehand, the engine life will
shorten greatly. During the warm-up
operation, confirm that cooling water
is discharged from the check port and
idle port.
5
Idle port
�������
!
Be sure to warm up engine well before
starting cruise. Operating cold engine
can give damage to it.
Note
Idle speed may be higher during
warming up of engine. If shifted to
Forward or reverse during warming
up, it may be difficult to shift back to
neutral. In such case, stop engine, shift
to neutral, and restart engine to warm
up.
■ Engine speed
Proper idle speed after warm-up
operation.
Cooling water
check port
Do not exceed the full-throttle engine
speed.
�������
!
Be sure to stop engine immediately
if cooling water check port is not
discharging water, and check if cooling
water intake is blocked. Operating
engine could lead to overheating
potentially leading to engine damage.
Consult an authorized dealer if the
cause cannot be found.
Clutch in (In gear) Clutch off (Out of gear)
750rpm
�������
!
Do not shift to "F" or "R" until turning
into proper idle speed.
Wide-open throttle rpm range
40D2 : 5,000∼5,700rpm
50D2 : 5,150∼5,850rpm
900rpm