1-12
Service Information
4st 9.9/15/20 2008
Propeller Marking (No. of Blades x
Diameter [in/mm] x Pitch [in/mm])
11.5 3×9.25×11.5 (3×235×292)
10 3×9.25×10 (3×235×254)
93×9.25×9(3×235×229)
83×9.25×8in (3×235×203) mm
73×9.2×6.9 (3×234×174)
63×9.2×6.1 (3×234×155)
11) Propeller Selection
Select a propeller that is best-suited to type of boat and
application.
Miss-selection of propeller can cause adverse
effects on engine life, fuel consumption, etc.
as well as on performance.
Range of operating engine speed at WOT
9.9C ：
5,000〜6,000r/min
15C ： 5,000〜6,000r/min
20C ：
5,400〜6,100r/min
10) Idling
After engine has warmed up, use tachometer to check idle
speed is as specified.
Idle Speed :
950 r/min
9) Cooling Water Check Port
Check that cooling water check port 1 discharges water
during engine runs.
Tachometer :
P/N. 3AC-99010-0
1High tension cord
E_MFS20C_ch01_090105.qxd 09.1.20 5:09 PM ページ 12
To Next Page
Loading...
Need help?
General
