Warming Up The Engine; Propeller Selection - TOHATSU M 6B Owner's Manual

30
ENGINE OPERATION

2. Warming up the engine

Warm the engine at low engine speeds
for about three minutes. This allows the
lubricating oil to circulate to all parts
of the engine. Operating the engine
without warm up shortens the engine's
life.
Be sure to check that cooling water is
coming out of the cooling water check
port during warm up.
!
If the engine is operated without water
5
discharging from the check port or idle
port, the engine may over heat.
!
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.
Idle port
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Cooling
water
check port
Engine speed
Idling speed after warming up.
Remark: In case of cold engine starting,
idling speed is increased about 300
rpm for several minutes.
Clutch in (In gear)
750 rpm

Propeller selection

P r o p e l l e r m u s t b e s e l e c t e d t h a t
w i l l a l l o w t h e e n g i n e t o r e a c h
recommended rpm when cruising at
wide-open throttle.
Model Wide-open throttle rpm range
6B • 8B 4,500 – 5,500 rpm
9.8B 5,000 – 6,000 rpm
Genuine propellers are listed on
PROPELLER TABLE of this manual.
Clutch off (Out of gear)
900 rpm