TECNIUM Casted Piston for YAMAHA PW 80 1986-1999

TECNIUM offers this piston kit for YAMAHA PW 80 1986-1999. 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.

When should you replace the piston on your YAMAHA PW 80?

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
• Stroke: 2T
• Manufacturer part number: 503484

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 : MOOSE · PROX
• Spark plug : see the selection
• 2-stroke oil : LIQUI MOLY 1 L 3065 · LIQUI MOLY 1 L 3063
• Air filter : TECNIUM · TWIN AIR

Compatibility

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

Fits:
YAMAHA PW 80 1999
YAMAHA PW 80 1998
YAMAHA PW 80 1997
YAMAHA PW 80 1996
YAMAHA PW 80 1995
YAMAHA PW 80 1994
YAMAHA PW 80 1993
YAMAHA PW 80 1992
YAMAHA PW 80 1991
YAMAHA PW 80 1986