Fuel System - Yamaha F30A Service Manual

SPEC
Item
Crankshaft
Crankshaft journal diameter
Crankpin diameter
Crankpin width
Crankshaft runout limit
Crankcase
Crankshaft journal oil
(*1)
clearance
Upper and lower crankcase
main journal bearing thickness
A - (Blue)
B - (Black)
C - (Brown)
Oil pump
Type
Relief valve opening pressure
Thermostat
Opening temperature
at 0.05 mm (0.0020 in)
Fully open temperature
Valve open lower limit
Manual starter
Starter rope length
Starter rope extended length
(*1)
The figures are for reference only.

Fuel system

Item
Carburetor
ID mark
(For Europe)
(For Oceania)
Float height
Valve seat size
Main jet (M.J.)
Main nozzle (M.N.)
2-17
Specification
Unit
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
kPa
(kgf/cm
°C (°F)
°C (°F)
mm (in)
mm (in)
mm (in)
Unit
mm (in)
mm (in)
mm (in)
F30AEHT
42.984–43.000 (1.6923–1.6929)
32.984–33.000 (1.2986–1.2992)
21.000–21.070 (0.8268–0.8295)
0.012–0.044 (0.0005–0.0017)
1.498–1.502 (0.0590–0.0591)
1.494–1.498 (0.0588–0.0590)
1.490–1.494 (0.0587–0.0588)
389–451 (3.89–4.51, 56.4–65.4)
2
, psi)
—
—
F30AEHT
—
69H02
12.0–16.0 (0.47–0.63)
#88
2.4 (0.09)
Model
F30AET F40BWHT
0.05 (0.0020)
Trochoid
58–62 (136–144)
70 (158)
3.0 (0.12)
1,750
(68.9)
1,400–
1,600
(55.12–
62.99)
Model
F30AET F40BWHT
69H22 —
67C03
1.4 (0.06)
2.8 (0.11)
F40BET
—
—
F40BET
67C23
#95
67C3K11