Yamaha Fazer, Service Manual

Page: 20 / 213

SPEC
DESCRIPTION SPECIFICATION
Cylinder :
Bore size 54.000 ~ 54.018 mm
(in five grades)
Piston :
Piston to Cylinder Clearance 0.020 ~ 0.027 mm
<Limit> <0.15mm>
Piston size “D” 53.977 ~ 53.996 mm
Cylinder Piston Grading (in five grades)
Measuring point “H” 4.5 mm
Piston offset 0.5 mm
Piston offset direction Intake side
Piston pin bore inside diameter 15.002 ~ 15.013 mm
Piston pin outside diameter 15.991 ~ 15.000 mm
Piston rings :
Top ring :
Type Barrel
Dimensions (B x T) 1.0 x 2.1 mm
End gap (installed) 0.15 ~ 0.30 mm
<Limit> <0.40mm>
Side clearance (installed) 0.030 ~ 0.07 mm
<Limit> <0.12 mm>
2nd ring :
Type Taper
Dimensions (B x T) 1.0 x 2.1 mm
End gap (installed) 0.30 ~ 0.45 mm
<Limit> <0.55mm>
Side clearance 0.020 ~ 0.060 mm
<Limit> <0.12 mm>
Oil ring :
Dimensions (B x T) 2.0 x 2.2 mm
End gap (installed) 0.2 ~ 0.7 mm
Side Clearance 0.040
(For Rail Upper and Rail Lower)
MAINTENANCE SPECIFICATIONS
ENGINE
Matching of Grades
Piston Cylinder
Red A
Orange
B
Green
C
Violet
D
Colour
Letter
Punch Mark
Blue
E
MAINTENANCE SPECIFICATIONS
2-4
A
B
C
D
E
Mark
Letter
Punch
Mark
Colour/Letter Mark
D
H