Page 247 of 382
ENGENGINE ASSEMBLY AND SETTING
5-43
ROCKER ARMS
1. Lubricate:
•Rocker shaft (apply engine oil)
2. Install:
•Rocker arm
•Rocker shaft
Screws (1) (rocker shaft): 10 Nm (1.0 kgm)
NOTE:
Each rocker arm is numbered.
(1) # 1
(2) # 2
(3) # 3
(4) # 4
3. Install:
•Cap (1)
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Page 248 of 382
ENGINE ASSEMBLY AND SETTING
5-44
ENG
CRANKSHAFT AND BALANCER SHAFT
(1) Connecting rod pin
(2) Crank (left)
(3) Connecting rod
(4) Bearing (5) Bearing
(6) Bearing
(7) Balancer shaft
(8) Bearing
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Page 249 of 382
ENGENGINE ASSEMBLY AND SETTING
5-45
CRANKSHAFT AND BALANCER SHAFT
1. Install:
•Crankshaft
Crankshaft installation tool (1):
P/N. Y U-90050
Crankshaft installation tool spacer (2):
P/N. 90890-01274
Crankshaft installation tool bolt (3):
P/N. 90890-01275
Adapter # 10 (Ml 4) (4):
P/N. Y M-90069
P/N. 90890-04059
Crank spacer (5):
P/N. YM-91044
P/N. 90890-04081
Spacer (6):
P/N. 90890-01016
NOTE:
Hold the connecting rod at top dead centre with
one hand and turn the assembly tool nut with the
other.
Work on the assembly tool until the lower part of
the crankshaft enters into contact with the bear-
ings.
To protect the crankshaft from scratches and
facilitate assembly operations, apply grease
to the edges of the oil seals and engine oil to
the bearings.
CAUTION:
2. Install:
•Balancer shaft (1)
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Page 250 of 382
ENGINE ASSEMBLY AND SETTING
5-46
ENG
TRANSMISSION
(1) Sprocket
(2) Oil seal
(3) Bearing
(4) Second wheel gear
(5) Secondary shaft
(6) Fifth wheel gear
(7) Third wheel gear
(8) Fourth wheel gear
(9) First wheel gear (10) Bearing
(11) Bearing
(12) Second sprocket gear
(13) Fifth sprocket gear
(14) Third sprocket gear
(15) Fourth sprocket gear
(16) Main shaft
(17) Bearing
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Page 251 of 382
ENGENGINE ASSEMBLY AND SETTING
5-47
GEARBOX
(1) Stopper lever
(2) Guide bar
(3) Shift fork #3
(4) Shift fork #1
(5) Shift cam
(6) Guide bar
(7) Shift fork #2
(8) Shift shaft #1
(9) Shift shaft #2
(10) Oil seal
(11) Shift lever
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Page 252 of 382
5-48
ENGENGINE ASSEMBLY AND SETTING
TRANSMISSION AND GEARBOX
1. Install:
•Transmission assembly (1)
2. Install:
•Shift fork #1 (1)
•Shift fork #2 (2)
•Shift fork #3 (3)
•Shift cam (4)
•Guide bar (5)
NOTE:
Each shift fork is identified by the number
stamped on its side. All numbers must face left.
3. Install:
•Shift shaft #1 (1)
•Shift shaft #2 (2)
NOTE:
Align mark (3) on the shift lever shaft with that on
the shift shaft.
4. Check:
•Transmission functioning
Jerky functioning ➔Repair.
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Page 253 of 382
ENGENGINE ASSEMBLY AND SETTING
5-49
ENGINE OIL PUMP AND OIL STRAINER
(1) Oil strainer
(2) Oil pump
(3) Oil pump gear
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Page 254 of 382
ENGINE ASSEMBLY AND SETTING
5-50
ENG
CRANKCASE
(1) Crankcase (R)
(2) Crankcase (L)
(3) Crankcase ventilation hose
(4) Dowel pin
(5) Dowel pin
(6) Dowel pin
(7) Bearing cover plate
(8) Collar
(9) Lock plate
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