VERTEX Casted Piston for SUZUKI JR 50, LT 50 QUADRUNNER 2WD, RMX 50 and KAWASAKI KFX 50 1978-2006 - 22491

VERTEX offers this piston kit for SUZUKI JR 50, LT 50 QUADRUNNER 2WD, RMX 50 and KAWASAKI KFX 50 1978-2006. The piston slides in the cylinder and takes the force of the air-fuel combustion, passing it to the connecting rod and crankshaft.

Why choose a cast piston?

A cast piston is made by pouring liquid aluminium into a mould: it is what most manufacturers fit as standard, especially on two-strokes.

• High-silicon alloy: it expands little, is fitted with tight clearance and stays quiet when cold.
• Good wear resistance of the skirt and ring grooves.
• Lower price than a forged piston, for OEM quality in normal use.
• Limit: less tolerant of overheating and highly tuned engines.

Why choose VERTEX?

Vertex has made its pistons in Italy since 1953 and has supplied KTM’s original pistons since 1996: molybdenum-disulphide coated skirt and Japanese rings. Its two-stroke pistons are cast from an 18 % silicon alloy. Its four-stroke pistons are forged from 2618 alloy.

When should you replace the piston?

Harder starting, loss of power, blue smoke, oil consumption or a knock when cold: these are the signs of a tired top end.

No manufacturer hour figure for this model. Cross-Mania guideline: compression check every 15 h in hard use and every 30 h for leisure.

Specifications and fitting tips

• Material: Aluminium
• Piston compression: Standard
• Piston type: Casted
• Rings Quantity: 1
• Stroke: 2T

Available in several sizes: choose the one that matches your cylinder (stamped size or measured bore).

Cross-Mania tip: Measure the cylinder bore before ordering: the piston must match your cylinder size. Follow the manufacturer's break-in procedure and replace the top-end gaskets at the same time.

Also needed with this part

• Top-end gasket kit : see the selection
• Spark plug : see the selection
• 2-stroke oil : LIQUI MOLY 1 L · LIQUI MOLY 4 L
• Air filter : TWIN AIR

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
KAWASAKI KFX 50 2006
KAWASAKI KFX 50 2005
KAWASAKI KFX 50 2004
KAWASAKI KFX 50 2003
SUZUKI JR 50 2006
SUZUKI JR 50 2005
SUZUKI JR 50 2004
SUZUKI JR 50 2003
SUZUKI JR 50 2002
SUZUKI JR 50 2001
SUZUKI JR 50 2000
SUZUKI JR 50 1999
SUZUKI JR 50 1998
SUZUKI JR 50 1997
SUZUKI JR 50 1996
SUZUKI JR 50 1995
SUZUKI JR 50 1994
SUZUKI JR 50 1993
SUZUKI JR 50 1992
SUZUKI JR 50 1991
SUZUKI JR 50 1990
SUZUKI JR 50 1989
SUZUKI JR 50 1988
SUZUKI JR 50 1987
SUZUKI JR 50 1986
SUZUKI JR 50 1985
SUZUKI JR 50 1984
SUZUKI JR 50 1983
SUZUKI JR 50 1982
SUZUKI JR 50 1981
SUZUKI JR 50 1980
SUZUKI JR 50 1979
SUZUKI JR 50 1978
SUZUKI LT 50 QUADRUNNER 2WD 2005
SUZUKI LT 50 QUADRUNNER 2WD 2004
SUZUKI LT 50 QUADRUNNER 2WD 2003
SUZUKI LT 50 QUADRUNNER 2WD 2002
SUZUKI LT 50 QUADRUNNER 2WD 2001
SUZUKI LT 50 QUADRUNNER 2WD 2000
SUZUKI LT 50 QUADRUNNER 2WD 1999
SUZUKI LT 50 QUADRUNNER 2WD 1998
SUZUKI LT 50 QUADRUNNER 2WD 1997
SUZUKI LT 50 QUADRUNNER 2WD 1996
SUZUKI LT 50 QUADRUNNER 2WD 1995
SUZUKI LT 50 QUADRUNNER 2WD 1994
SUZUKI LT 50 QUADRUNNER 2WD 1993
SUZUKI LT 50 QUADRUNNER 2WD 1992
SUZUKI LT 50 QUADRUNNER 2WD 1991
SUZUKI LT 50 QUADRUNNER 2WD 1990
SUZUKI LT 50 QUADRUNNER 2WD 1989
SUZUKI LT 50 QUADRUNNER 2WD 1988
SUZUKI LT 50 QUADRUNNER 2WD 1987
SUZUKI LT 50 QUADRUNNER 2WD 1986
SUZUKI LT 50 QUADRUNNER 2WD 1985
SUZUKI LT 50 QUADRUNNER 2WD 1984
SUZUKI RMX 50 2001
SUZUKI RMX 50 2000
SUZUKI RMX 50 1999
SUZUKI RMX 50 1998
SUZUKI RMX 50 1997