4 - 9
ENGCARBURETOR
Fuel filter
1. Inspect:Fuel filter 1
Damage → Replace.
1
ASSEMBLY AND INSTALLATION
Carburetor
1. Install:
Clip 1
NOTE:
Align the space b between the clip ends with
the slit a of the throttle valve.
1
a
b
2. Install: Starter plunger 1
NOTE:
Align the slit a of the throttle valve with the tab
b of the carburetor top.
1
ba
FUEL LEVEL ADJUSTMENT
WARNING
Gasoline (fuel) and its vapors are highly
flammable and explosive. Keep away from
sparks, cigarettes, flames or other sources
of ignition.
1. Measure:
Fuel level a
Use a fuel level gauge 1.
Out of specification → Adjust.
Fuel level gauge:
YM-01312-A/90890-01312
Fuel level:2.0 ~ 3.0 mm (0.08 ~ 0.12 in)
Below the float chamber mating
surface
a
1
4 - 47
ENGENGINE REMOVAL
ENGINE REMOVAL
(4)
NewNew
LS
T R..30 Nm (3.0 m • kg, 22 ft • Ib)
T R..30 Nm (3.0 m •
kg, 22 ft • Ib)
T R..30 Nm (3.0 m •
kg, 22 ft • Ib)
T R..30 Nm (3.0 m •
kg, 22 ft • Ib)
T R..48 Nm (4.8 m •
kg, 35 ft • Ib)
T R..7 Nm (0.7 m •
kg, 5.1 ft • Ib)
T R..10 Nm (1.0 m • kg, 7.2 ft • Ib)
(3)
10
4
1 6
2
9
3
11
7
5 8
Extent of removal:
1 Engine removal
Extent of removal Order Part name Q ’ty Remarks
ENGINE REMOVAL
Preparation for removal Hold the machine by placing the suitable stand under the frame.
Seat assembly, fuel tank air filter
case cover and air filter case Refer to
“FRONT FENDER, SEAT
ASSEMBLY AND FUEL TANK ” section.
Carburetor Refer to “CARBURETOR ” section.
Muffler Refer to “MUFFLER ” section.
Spark plug cap
Disconnect the AC magneto cou-
plers.
Disconnect the neutral switch
lead.
Starter motor Refer to “ELECTRIC STARTING SYS-
TEM ” section in the CHAPTER 6.
4 - 51
ENGCRANKCASE AND CRANKSHAFT
CRANKCASE AND CRANKSHAFT
E
T R..10 Nm (1.0 m • kg, 7.2 ft • Ib)
T R..10 Nm (1.0 m •
kg, 7.2 ft • Ib)
LT
4
4 3
4
4
5 6
7
9
8
8
12
5 6
4
Extent of removal Order Part name Q ’ty Remarks
CRANKCASE SEPARATION
AND CRANKSHAFT REMOVAL
Preparation for removal Seat assembly and fuel tank
Exhaust pipe
Air filter case and bottom cover Refer to “FRONT FENDER, SEAT
ASSEMBLY AND FUEL TANK ” section.
Carburetor Refer to “CARBURETOR ” section.
Drain the engine oil. Refer to “ENGINE OIL REPLACEMENT ”
section in the CHAPTER 3.
Drive sprocket Refer to “ENGINE REMOVAL ”.
Cylinder head Refer to “CYLINDER HEAD ” section.
Cylinder and piston Refer to “CYLINDER AND PISTON ” sec-
tion.
Primary driven gear Refer to “CLUTCH ” section.
