Yamaha TMAX 2020, Service Manual

Page: 33 / 688

2-4
ENGINE SPECIFICATIONS
Piston
Diameter 69.975–69.990 mm (2.7549–2.7555 in)
Measuring point (from piston skirt bottom) 8.0 mm (0.31 in)
Piston-to-cylinder clearance 0.010–0.035 mm (0.0004–0.0014 in)
Piston pin bore inside diameter 17.002–17.013 mm (0.6694–0.6698 in)
Limit 17.043 mm (0.6710 in)
Piston pin outside diameter 16.995–17.000 mm (0.6691–0.6693 in)
Limit 16.975 mm (0.6683 in)
Piston-pin-to-piston-pin-bore clearance 0.002–0.018 mm (0.0001–0.0007 in)
Piston ring
Top ring
End gap limit 0.50 mm (0.0197 in)
Ring side clearance 0.030–0.065 mm (0.0012–0.0026 in)
Side clearance limit 0.115 mm (0.0045 in)
2nd ring
End gap limit 0.85 mm (0.0335 in)
Ring side clearance 0.020–0.055 mm (0.0008–0.0022 in)
Side clearance limit 0.115 mm (0.0045 in)
Connecting rod
Oil clearance 0.039–0.063 mm (0.0015–0.0025 in)
Bearing color code
Code 1 Blue
Code 2 Black
Code 3 Brown
Code 4 Green
Crankshaft
Runout limit 0.030 mm (0.0012 in)
Crankshaft journal diameter 54.984-55.000 mm (2.1647-2.1654 in)
Journal oil clearance 0.040–0.087 mm (0.0016–0.0034 in)
Bearing color code
Code 0 White
Code 1 Blue
Code 2 Black
Code 3 Brown
Code 4 Green
Code 5 Yellow
Balancer
Bearing color code
Code 1 Blue
Code 2 Black
Code 3 Brown
Code 4 Green
Balancer shaft journal to balancer shaft
bearing clearance 0.036–0.060 mm (0.0014–0.0024 in)