Forged Piston Rings 1.00mm Over Compatible with 1987-2006 Yamaha YFZ350 Banshee 350 347cc Liquid-Cooled 2-Stroke Twin Cylinder Sport ATV 65.00mm 2GU-11631-00-94

Forged Piston Ring Set - 65.00mm (1.00mm Over) Compatible with Yamaha Banshee 350 ATV
Aftermarket forged piston ring set for the Yamaha Banshee 350 engine platform. Bored 1.00mm over standard 64.00mm bore for a total diameter of 65.00mm. Forged ring set designed for use with WSM forged pistons and big bore kits. Designed for the 347cc liquid-cooled 2-stroke reed-valve twin-cylinder engine with 64mm x 54mm bore and stroke and 6.5:1 compression ratio. This engine powers the Yamaha YFZ350 Banshee produced from 1987-2006 including Limited Edition, Special Edition, and 50th Anniversary models. Dual Mikuni 26mm carburetors. Kick start only. Includes compression ring and expander ring for one cylinder.

OEM PART NUMBERS:
• 2GU-11631-00-94 (Piston Ring Set)

SPECIFICATIONS:
• Bore Size: 65.00mm (1.00mm Over)
• Standard Bore: 64.00mm
• Stroke: 54.0mm
• Displacement: 347cc (2 x 173.5cc)
• Engine Type: Liquid-Cooled 2-Stroke Reed Valve Twin Cylinder
• Compression Ratio: 6.5:1
• Fuel System: Dual Mikuni 26mm VM26SS Carburetors
• Ring Type: Forged
• Product Type: Piston Ring Set (per cylinder)

APPLICATIONS:
• YFZ350 Banshee (1987-2006)
• YFZ350LE Banshee Limited Edition (2003-2005)
• YFZ350SE Banshee Special Edition (2005-2006)
• YFZ350SP Banshee 50th Anniversary (2006)

⚠️ Twin-cylinder engine — order 2 ring sets per complete rebuild.
⚠️ Verify OEM part number from your original unit before ordering.