48
PISTON ASSEMBLY
Ring End Gap:
0.25mm (0.010in) minimum
Service limit:
0.75mm (0.030in)
Ring/Groove Tolerance
First: 0.04-0.06mm
(0.0015- 0.002in)
Second: 0.02-0.04mm
(0.001- 0.0015in)
Removal (remove cowling, cylinder head assembly and cylinder jug prior)
First and second rings (1 & 2)
Pin clips (5, qty. 2)
Wrist pin (6)
Bearing (7)
Installation procedure is reverse of
removal; ensure ring gaps are set
according to alignment pins,
guaranteeing offset of 120° and any
markings face up.
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