Piston Pins; Crankshaft And Connecting Rods - Yamaha YZF1000RJ Service Manual

INSPECTION AND REPAIR
I
ENG ' ' - '
EB402120
PISTON PINS
1.lnspect:
• Piston pin
Blue discoloration/grooves
➔
Replace
the piston pin, then inspect the lubrication
system.
2.Measure:
• Piston pin-to-piston clearance
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•
•
Measurement steps: •
• Measure the piston pin outside diameter
307-018
308 005
4- 36
®·
If out of specification, replace the piston
pin.
Outside diameter (piston pin):
18.991 ... 19.000 mm
(0.7477 ... 0.7480 in)
• Measure the inside diameter of the piston
(£).
eUse the following formula to calculate the
piston pin-to-piston clearance:
Piston pin-to-piston clearance
=
Bore size (piston pins) (li) -
Outside diameter (piston pins)
@
e
If out of specification, replace the piston.
Clearance (piston pin to piston):
0.004 .. 0.024 mm
(0.00016 .. 0.00094 in)
<Limit>: 0.07 mm (0.003 in)
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E8402131
CRANKSHAFT AND CONNECTING RODS
1.Measure:
• Runout (crankshaft)
Out of specification
➔
Replace.
Runout (crankshaft):
Less than 0.03 mm (0.0012 in)
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