2 - 12
SPEC
Tightening torques
Part to be tightened
Part
name
Thread
size
Q’ty
Tightening torque
Remarks
Nm
m·kg
ft·lb
Cylinder head oil passage
Union bolt
M6
1
7
0.7
5.1
Cylinder head (exhaust pipe)
Stud bolt
M8
2
15
1.5
11
Cylinder head
Bolt
M10
4
40
4.0
29
Bolt
M6
2
10
1.0
7.2
Camshaft sprocket cover baffle
plate
Bolt
M6
2
10
1.0
7.2
LT
Camshaft bearing retainer
Bolt
M6
2
8
0.8
5.8
Spark plug
—
M12
1
18
1.8
13
Coolant drain bolt (cylinder)
Bolt
M6
1
10
1.0
7.2
Starter clutch
Bolt
M10
1
50
5.0
36
Camshaft sprocket
Bolt
M10
1
60
6.0
43
Timing chain tensioner cap
Bolt
M11
1
23
2.3
17
Timing chain tensioner
Bolt
M6
2
11
1.1
8.0
Timing chain guide (intake)
Bolt
M6
2
10
1.0
7.2
LT
Valve adjusting screw
Nut
M7
2
20
2.0
14
Radiator
Bolt
M6
2
7
0.7
5.1
Oil pump assembly
Screw
M6
3
8
0.8
5.8
Oil pump
Screw
M6
1
7
0.7
5.1
Oil strainer cover
Plug
M35
1
32
3.2
23
Oil drain bolt
Bolt
M14
1
23
2.3
17
Oil pump drive gear
Nut
M14
1
50
5.0
36
Oil delivery pipe
Union bolt
M8
2
18
1.8
13
Oil filter bolt
Union bolt
M20
1
63
6.3
45
E
Oil filter cartridge
—
M20
1
17
1.7
12
Intake manifold
Bolt
M8
2
20
2.0
14
Muffler and exhaust pipe
Bolt
M8
2
15
1.5
11
Exhaust pipe
Nut
M8
2
20
2.0
14
Muffler
Bolt
M10
2
25
2.5
18
Exhaust pipe stay
Bolt
M6
2
14
1.4
10
Crankcase cover
Screw
M6
4
8
0.8
5.8
LT
Oil seal retainer
Screw
M5
3
7
0.7
5.1
Drive belt case cover
Bolt
M6
12
10
1.0
7.2
Crankcase oil passage plug
Plug
M18
1
55
5.5
40
Bearing retainer (right crankcase)
Screw
M6
1
11
1.1
8.0
LT
Plug (right crankcase)
Bolt
M8
1
15
1.5
11
Bearing retainer (left crankcase)
Bolt
M6
2
10
1.0
7.2
LT
Crankcase cover (left)
Bolt
M6
12
10
1.0
7.2
Recoil starter
Bolt
M6
4
10
1.0
7.2
LT
Starter one-way clutch
Bolt
M8
6
30
3.0
22
LT
Clutch carrier assembly
Nut
M22
1
140
14
100 Stake
Middle drive shaft bearing retainer
Torx
screw
M8
4
25
2.5
18
LT
MAINTENANCE SPECIFICATIONS
Summary of Contents for YFM45FAR
Page 1: ...YFM45FAR YFM450FAR 5ND2 AE1 SERVICE MANUAL ...
Page 2: ......
Page 8: ......
Page 9: ...GEN INFO 1 ...
Page 11: ...GEN INFO ...
Page 27: ......
Page 28: ...SPEC 2 ...
Page 30: ...SPEC ...
Page 41: ...2 11 SPEC Cylinder head tightening sequence Item Standard Limit MAINTENANCE SPECIFICATIONS ...
Page 53: ...2 23 SPEC 1 Radiator 2 Thermostat È To coolant reservoir COOLANT FLOW DIAGRAMS ...
Page 54: ...2 24 SPEC OIL FLOW DIAGRAMS 1 Camshaft 2 Crankshaft 3 Drive axle OIL FLOW DIAGRAMS ...
Page 55: ...2 25 SPEC 1 Oil filter OIL FLOW DIAGRAMS ...
Page 56: ...2 26 SPEC 1 Oil pump 2 Oil strainer OIL FLOW DIAGRAMS ...
Page 67: ...CHK ADJ 3 ...
Page 133: ......
Page 134: ...ENG 4 ...
Page 138: ...ENG ...
Page 227: ...COOL 5 ...
Page 229: ...COOL ...
Page 241: ......
Page 242: ...CARB 6 ...
Page 244: ...CARB ...
Page 252: ......
Page 253: ...DRIV 7 ...
Page 255: ...DRIV ...
Page 287: ......
Page 288: ...CHAS 8 ...
Page 343: ...ELEC 9 ...
Page 345: ... ELEC ...
Page 348: ...9 3 ELEC CHECKING THE SWITCH ...
Page 393: ......
Page 394: ...TRBL SHTG 10 ...
Page 396: ...TRBL SHTG ...
Page 403: ......
Page 404: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...