Yamaha F115 AETL [286/709] Crankshaft and piston connecting rod assembly

Yamaha F115A [286/709] Crankshaft and piston connecting rod assembly
5-46
POWR
E
CRANKSHAFT AND PISTON/
CONNECTING ROD ASSEMBLY
CAUTION:
The (*) mark indicates that the color of the
upper and lower bearings are different.
(9) If the measurement value is more than
the maximum value (0.071 mm),
replace the crankshaft, connecting rod,
or both.
Connecting rod bearing selection table
(20 ˚C (68 ˚F))
Measurement
value using a
Plastigauge
®
(mm)
Upper bearing Lower bearing
0.025 - 0.031
0.032 - 0.039
0.040 - 0.046
0.047 - 0.052
0.053 - 0.058
0.059 - 0.063
Yellow
Yellow
Green
Green
Blue
Blue
Yellow
Green*
Green
Blue*
Blue
Red*
INSTALLING THE PISTON RING 5
CAUTION:
Do not scratch the piston or break the pis-
ton rings.
After installing the piston rings, check
that they move smoothly.
Install:
Oil ring (#3 and #4)
2nd ring (#2)
Top ring (#1)
NOTE:
Offset the piston-ring end gaps as shown.
Piston rings should be replaced as a set.
U P
#1
#1
#2
#2
#4
#4
#3
#3
45˚
45˚
5610

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