Yamaha F400A 2022 - Selecting the Crankshaft Pin Bearing

Cylinder block
7-85
Selecting the crankshaft pin bearing
When replacing the crankshaft pin bearing,
select the bearing as follows.
1. Measure:
• Connecting rod big end inside diameter
“a”
Example:
2. Check:
Stamped mark “a” (on the crank web)
3. Select:
• Crankshaft pin bearing
TIP:
Select the suitable colors “1” for the crank-
shaft pin bearing from the “Crankshaft pin
bearing selection table” (7-87).
Big end oil clearance
0.026–0.049 mm (0.0010–
0.0019 in)
Limit
0.079 mm (0.0031 in)
Big end inside diameter
65.990–66.010 mm (2.5980–
2.5988 in)
Connecting rod big
end inside diameter
“a”
Number in table
66.005
mm 05
a
Rod side bear-
ing color
Cap side bear-
ing color
“a” Yellow Yellow
“b” Yellow Green
“c” Green Green
“d” Blue Green
“e” Blue Blue
P1 P2
P3 P4
P5 P6
P7 P8
P1
P2
P3
P4
P5
P6
P7
P8
a
1
1