Warming Up The Engine - TOHATSU M 60C Owner's Manual

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.
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!
If the engine is operated without water
discharging from the check port or
idle port, the engine may over heat.
Idle port
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!
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.
Cooling water
check port
ENGINE OPERATION
Engine speed
Proper idle speed after warm-up
operation.
Note
In case of cold engine starting, idling
speed is increased about 300 rpm for
several minutes.
Clutch in
Model
(In gear)
60C/70C 750 rpm
90A2 700 rpm
120A2/140A2 700 rpm
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!
Do not shift to "F" or "R" until turning
into proper idle speed.
Do not exceed the full-throttle engine
speed.
Model Wide-open throttle rpm range
60C/70C 5,150 - 5,850 rpm
90A2 5,000 - 5,500 rpm
120A2/140A2 5,200 - 5,700 rpm
47
Clutch off
(Out of gear)
900 rpm
900 rpm
900 rpm
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