PROX piston kit for YAMAHA DT 200 R, YFS 200, YFS 200 MNH, YFS 200 SE from 1984 to 2006

PROX offers this piston kit for YAMAHA DT 200 R, YFS 200, YFS 200 MNH, YFS 200 SE from 1984 to 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 PROX?

ProX has its pistons made in Japan and the USA, with Japanese rings (Riken, TP or NPR) and tolerances at least equal to OEM; most of its four-stroke pistons are forged.

When should you replace the piston on your YAMAHA YFS 200?

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 20 h in hard use and every 40 h for leisure.

Specifications and fitting tips

• Bore: 68.00 mm
• Piston material: Aluminium alloy, Cast
• Ring material: Steel
• Style: Cast Replica
• Piston size: +2.00 mm
• ProX cast pistons offer high stability

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 : TECNIUM

Compatibility

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

Fits:
YAMAHA DT 200 R 1993
YAMAHA DT 200 R 1992
YAMAHA DT 200 R 1991
YAMAHA DT 200 R 1990
YAMAHA DT 200 R 1989
YAMAHA DT 200 R 1988
YAMAHA DT 200 R 1987
YAMAHA DT 200 R 1986
YAMAHA DT 200 R 1985
YAMAHA DT 200 R 1984
YAMAHA YFS 200 2006
YAMAHA YFS 200 2005
YAMAHA YFS 200 2004
YAMAHA YFS 200 2003
YAMAHA YFS 200 2002
YAMAHA YFS 200 2001
YAMAHA YFS 200 2000
YAMAHA YFS 200 1999
YAMAHA YFS 200 1998
YAMAHA YFS 200 1997
YAMAHA YFS 200 1996
YAMAHA YFS 200 1995
YAMAHA YFS 200 1994
YAMAHA YFS 200 1993
YAMAHA YFS 200 1992
YAMAHA YFS 200 1991
YAMAHA YFS 200 1990
YAMAHA YFS 200 1989
YAMAHA YFS 200 1988
YAMAHA YFS 200 MNH 1997
YAMAHA YFS 200 MNH 1996
YAMAHA YFS 200 MNH 1995
YAMAHA YFS 200 MNH 1994
YAMAHA YFS 200 MNH 1993
YAMAHA YFS 200 MNH 1992
YAMAHA YFS 200 MNH 1991
YAMAHA YFS 200 SE 2006