Yamaha TT-R90(R) Owner's Service Manual page 68

Part to be tightened
Engine mounting:
Engine and frame (front-upper)
Engine and frame (rear-upper)
Engine and frame (rear-lower)
Starter cable and frame
Pivot shaft and nut
Handle crown and steering shaft
Front fork cap bolt
Under bracket and front fork
Damper rod bolt
Handle crown and handlebar holder (lower)
Handlebar holder (upper)
Front brake cable holder and front fork
Steering ring nut
Fuel tank and fuel cock
Fuel tank and frame
Grab bar and frame
Front brake camshaft lever and camshaft
Rear brake camshaft lever and camshaft
Front wheel axle nut
Rear brake shoe plate tension bar
Wheel drive hub and driven sprocket
Rear wheel axle nut
Wheel nipple (spoke)
Drive chain guard
Drive chain support
Chain puller locknut
Footrest and frame
NOTE:
1. First, tighten the ring nut approximately 38 Nm (3.8 m • kg, 27 ft • lb) by using the ring nut
G
wrench and turn the steering right and left a few times; then loosen the ring nut one turn.
2. Retighten the ring nut 1 Nm (0.1 m • kg, 0.7 ft • lb).
-marked portion shall be checked for torque tightening after break-in or before each ride.
G
MAINTENANCE SPECIFICATIONS
Thread size
M8 × 1.25
M8 × 1.25
M10 × 1.25
M11 × 1.25
M10 × 1.25
M10 × 1.25
M20 × 1.0
M10 × 1.25
M8 × 1.25
M10 × 1.25
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M6 × 1.0
M10 × 1.25
M8 × 1.25
M8 × 1.25
M12 × 1.25
M5 × 0.8
M5 × 0.8
M6 × 1.0
M8 × 1.25
2 - 13
Q'ty
1
1
1
1
1
1
2
2
2
2
4
2
M25 1
2
2
4
1
1
1
2
4
1
— 64
2
3
2
2
SPEC
Tightening torque
Nm m•kg ft•lb
30 3.0
26 2.6
40 4.0
1 0.1 0.7
30 3.0
40 4.0
40 4.0
33 3.3
20 2.0
40 4.0
13 1.3 9.4
7 0.7 5.1
Refer to NOTE.
7 0.7 5.1
7 0.7 5.1
13 1.3 9.4
7 0.7 5.1
7 0.7 5.1
35 3.5
26 2.6
25 2.5
60 6.0
2 0.2 1.4
4 0.4 2.9
4 0.4 2.9
3 0.3 2.2
30 3.0
22
19
29
22
29
29
24
14
29
25
19
18
43
22