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Piston Pin And Bearing Inspection - Yamaha WaveRunner GP1200R Manual De Servicio

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POWR
PISTONS
2. Measure:
End gap
(with a thickness gauge 1)
Out of specification → Replace the
piston rings as a set.
End gap:
0.45 ~ 0.60 mm (0.018 ~ 0.024 in)
NOTE:
Push the piston ring into the cylinder with
the piston crown.

Piston pin and bearing inspection

1. Inspect:
Piston pins
Bearings
Signs of heat discoloration → Replace.
2. Measure:
Piston pin outside diameter
(with a micrometer 1)
Out of specification → Replace.
Piston pin outside diameter:
Standard
21.995 ~ 22.000 mm
(0.8659 ~ 0.8661 in)
Limit
21.990 mm (0.8657 in)
3. Check:
Piston-pin-to-piston free play
(with the piston pin in the piston as
shown)
Free play → Replace the piston pin,
piston or both.
5-29
E

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