Product description

The Wiseco High-Performance Piston Kit For Yamaha YZ125 1997-2004 Standard is part of the latest collection from Wiseco.

Features:

• Forged from high-silicon aluminum alloy for maximum strength and dependability
• Wiseco offers a complete range of popular piston models and years for both trail and racing applications
• Durability, longevity and increased horsepower
• Innovative forging design and piston skirt provide maximum horsepower and torque
• Features forged pistons, rings, wrist pins, and circlips
• These high-tech piston designs offer maximum compression ratios, ultra-stiff strutted forgings, and titanium nitride-coated rings, which all add up to more power that is sustained longer
• Each piston is E-Coated on the crown, ring grooves, and pin bore, for maximum wear resistance and protection from micro-welding, galling, and detonation
• GP Series parts generally have less machining on the outside, which helps seal up the bore for increased compression
• Additionally, boost ports are removed for a more predictable powerband and increased pull on the top end
• Cylinder sleeves must be purchased separately.
• Service intervals may be increased with Racer's Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only.
Piston is electra coated. Does not have an intake window. Is pinned on centerline. Has a longer skirt than stock.

Specifications:

• Bore - Oversize Metric: Standard
• Bore - Oversize: Standard
• Bore Size: 54.00 mm
• Compression Ratio Imperial: Stock
• Compression Ratio: Stock
• Displacement: 125 cc
• Engine Type: 2-Stroke
• Model: GP Series
• Piston Diameter Metric: 53.95 mm
• Piston Diameter: 53.95 mm
• Piston Material: 4032 Aluminum Alloy| Forged
• Product Name: Piston Kit

To fit:

• YAMAHA YZ 125 1997 All Models
• YAMAHA YZ 125 1998 All Models
• YAMAHA YZ 125 1999 All Models
• YAMAHA YZ 125 2000 All Models
• YAMAHA YZ 125 2001 All Models
• YAMAHA YZ 125 2002 All Models
• YAMAHA YZ 125 2003 All Models
• YAMAHA YZ 125 2004 All Models

Manufacturer part number: 765M05400

View all Wiseco. View all Parts and spares.

Contents

Your package will include the following:

• 1 X Wiseco High-Performance Piston Kit For Yamaha YZ125 1997-2004 Standard