Yamaha 2002 TDM900 Service Manual page 47

Item
Timing chain
Model/number of links
Tensioning system
Valve, valve seats, valve guides
Valve clearance (cold)
Intake
Exhaust
Valve dimensions
Head Diameter
Valve head diameter A
Intake
Exhaust
Valve face width B
Intake
Exhaust
Valve seat width C
Intake
Exhaust
Valve margin thickness D
Intake
Exhaust
Valve stem diameter
Intake
Exhaust
Valve guide inside diameter
Intake
Exhaust
Valve-stem-to-valve-guide clearance
Intake
Exhaust
Valve stem runout
Valve seat width
Intake
Exhaust
ENGINE SPECIFICATIONS
82RH2015/138
Automatic
0.15 X 0.20 mm
0.23 X 0.28 mm
Face Width
25.9 X 26.1 mm
27.9 X 28.1 mm
2.1 X 2.5 mm
2.1 X 2.5 mm
0.9 X 1.1 mm
0.9 X 1.1 mm
0.8 X 1.2 mm
0.8 X 1.2 mm
5.475 X 5.490 mm
5.460 X 5.475 mm
5.500 X 5.512 mm
5.500 X 5.512 mm
0.010 X 0.037 mm
0.025 X 0.052 mm
SSS
0.9 X 1.1 mm
0.9 X 1.1 mm
2-5
Standard
Seat Width Margin Thickness
SPEC
Limit
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
1.6 mm
1.6 mm
SSS
SSS
5.445 mm
5.430 mm
5.55 mm
5.55 mm
0.08 mm
0.1 mm
0.01 mm
1.6 mm
1.6 mm