APRILIA MXV 450 - Owner's Manual download pdf (Page 88)

LUBRICATION

3 - 50

ine 450 - 550

3.4.3. INSTALLATION

NOTE When assembling the piston rings, ensure their

reference faces up.

• Install piston ring (3) with gap facing the exhaust and

oil scraper ring (4) gap facing the intake.

NOTE Ensure that piston marking is facing the cylinder

exhaust side. Before fitting the gudgeon pin, lubricate it with

engine oil.

• Fit piston into cylinder barrel (1).

• Fit cylinder barrel (1) to crankcase.

• Install the gudgeon pin.

• Fit the gudgeon pin circlip.

• Close the plug (2).

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APRILIA MXV 450 - Owner's Manual Page 88