Yamaha TZ250M1, Owner'S Service Manual

Page: 42 / 287

MAINTENANCE SPECIFICATIONS
2-5
SPEC
Part to be tightened Thread size Q’ty
Tightening torque
Nm m
d
kg ft
d
lb
Spark plug M14S
X
1.25 2 19 1.9 13
Cylinder head (bolt) M 6
X
1.0 12 11 1.1 8.0
Cylinder (nut) M 8
X
1.25 8 20 2.0 14
(stud) M 8
X
1.25 8 15 1.5 11
Power valve:
Cover M 5
X
0.8 8 4 0.4 2.9
Holder (power valve) M 5
X
0.8 2 9 0.9 6.5
Pulley M 5
X
0.8 2 4 0.4 2.9
Cable stay M 5
X
0.8 4 7 0.7 5.1
Air bleed bolt (cylinder) M 6
X
1.0 2 12 1.2 8.7
Balance weight gear M14
X
1.0 1 50 5.0 36
Water pump housing cover M 6
X
1.0 5 11 1.1 8.0
Radiator M 6
X
1.0 3 7 0.7 5.1
Radiator and thermo unit M16
X
1.5 1 11 1.1 8.0
Radiator hose clamp – 6 2 0.2 1.4
Oil pump cover M 5
X
0.8 3 8 0.8 5.8
Oil strainer M 6
X
1.0 4 7 0.7 5.1
Carburetor joint M 6
X
1.0 9 11 1.1 8.0
Clamp (carburetor joint) M 4
X
0.7 2 2 0.2 1.4
Reed valve M 3
X
0.5 12 1 0.1 0.7
Mixing chamber top M 4
X
0.7 2 2 0.2 1.4
Exhaust pipe M 8
X
1.25 2 21 2.1 15
Silencer M 6
X
1.0 4 11 1.1 8.0
Crankcase M 8
X
1.25 6
Refer to NOTE
Crankcase M 6
X
1.0 8
Transmission housing M 6
X
1.0 6 16 1.6 11
Oil check bolt M 6
X
1.0 1 9 0.9 6.5
Oil drain bolt M12
X
1.25 1 23 2.3 17
Crankcase cover (right) M 6
X
1.0 10 11 1.1 8.0
Crankcase cover (left) M 6
X
1.0 3 11 1.1 8.0
Primary drive gear M10
X
1.25 1 55 5.5 40
Clutch boss M20
X
1.0 1 75 7.5 54
Clutch spring M 6
X
1.0 6 9 0.9 6.5
Push rod adjuster M 6
X
1.0 1 6 0.6 4.3
Seat plate (push lever) M 5
X
0.8 1 7 0.7 5.1
Clutch cable holder M 6
X
1.0 2 8 0.8 5.8
Bearing plate cover M 6
X
1.0 3 10 1.0 7.2
Oil seal plate cover M 5
X
0.8 2 7 0.7 5.1
Drive sprocket M20
X
1.0 1 75 7.5 54
Bearing plate cover (shift cam) M 5
X
0.8 1 4 0.4 2.9
Segment M 8
X
1.25 1 23 2.3 17
Shift guide M 6
X
1.0 2 11 1.1 8.0
Shift lever adjuster and locknut M 6
X
1.0 1 9 0.9 6.5
Stopper bolt (torsion spring) M 8
X
1.25 1 8 0.8 5.8
Shift arm M 6
X
1.0 1 14 1.4 10
Joint rod 1 and shift rod M 6
X
1.0 1 9 0.9 6.5