Cooling Water Check Port; Idling; Propeller Selection; Range Of Operating Engine Speed At Wot - TOHATSU MFS 9.9 Owner's Manual

Service Information

9) Cooling Water Check Port

Check that cooling water check port 1 discharges water
during engine runs.

10) Idling

After engine has warmed up, use tachometer to check idle
speed is as specified.
Idle Speed :
950 r/min
RPM
Tachometer :
P/N. 3AC-99010-0

11) Propeller Selection

Select a propeller that is best-suited to type of boat and
application.

Range of operating engine speed at WOT

RPM
Miss-selection of propeller can cause adverse
effects on engine life, fuel consumption, etc.
as well as on performance.
Propeller Marking (No. of Blades x
Diameter [in/mm] x Pitch [in/mm])
1-12
： 5,000∼6,000r/min
9.9C
15C ： 5,000∼6,000r/min
20C ： 5,400∼6,100r/min
CAUTION
1
1
1High tension cord
11.5 3×9.25×11.5
10 3×9.25×10
9 3×9.25×9
8 3×9.25×8 in
7 3×9.2×6.9
6 3×9.2×6.1
(3×235×292)
(3×235×254)
(3×235×229)
(3×235×203) mm
(3×234×174)
(3×234×155)
4st 9.9/15/20 2008