SPEC
MAINTENANCE SPECIFICATIONS (FT9.9D)
2-27
E
Model
Item
Unit
FT9.9DMH
FT9.9DEH
FT9.9DE
Oil ring
Dimensions (B x T)
mm (in)
2.4 x 2.5 (0.09 x 0.10)
End gap (installed)
mm (in)
0.2 ~ 0.7 (0.008 ~ 0.028)
Wear limit
mm (in)
0.9 (0.04)
CONNECTING ROD
Small end inside diameter
mm (in)
14.015 ~ 14.029 (0.5518 ~ 0.5523)
Big end oil clearance
mm (in)
0.021 ~ 0.045 (0.0008 ~ 0.0018)
CRANKSHAFT
Crankshaft width
mm (in)
126.70 ~ 126.90 (4.99 ~ 5.00)
Radial clearance
mm (in)
0.05 (0.002)
Crankshaft big end side clearance
mm (in)
0.05 ~ 0.22 (0.002 ~ 0.009)
Crankcase mark - bearing color
A:Blue B:Black C:Brown
Crankshaft journal clearance
mm (in)
0.012 ~ 0.045 (0.0005 ~ 0.0018)
Runout limit
mm (in)
0.03 (0.0012)
THERMOSTAT
ID mark
S60°C
Valve opening temperature
°C (°F)
58 ~ 62 (136.4 ~ 143.6)
Full-open temperature
°C (°F)
70 (158)
Valve lift
mm (in)
3 (0.12)
FUEL PUMP
Discharge
L (US gal, Imp gal)/h
@ 3,000 r/min
25 (6.60, 5.50)
Pressure
kPa (kg/cm
2
,psi)
117.6 (1.2, 17.07)
Diaphragm stroke
mm (in)
2.4 ~ 4.8 (0.094 ~ 0.189)
Plunger stroke
mm (in)
3.52 ~ 6.57 (0.139 ~ 0.259)
OIL PUMP
Type
Trochoid
Outer rotor-to-housing clearance
a
mm (in)
0.10 ~ 0.15 (0.004 ~ 0.006)
Outer rotor-to-inner rotor clearance
b
mm (in)
0.04 ~ 0.14 (0.002 ~ 0.006)
Rotor-to-cover clearance
c
mm (in)
0.03 ~ 0.09 (0.001 ~ 0.004)
Relief valve operating pressure
kPa (kg/cm
2
, psi)
388 ~ 450 (3.88 ~ 4.50, 55.2 ~ 64.0)
CARBURETOR
ID mark
66R00
Main jet
#
68
Pilot jet
#
45
Pilot screw
turns out
1-1/2 ± 1/2
Float height
a
mm (in)
9.5 ~ 10.5 (0.37 ~ 0.41)
Idle speed
r/min
1,050 ± 50
Trolling speed
r/min
950 ± 50
c
a
b
a
