Yamaha Banshee CPI 68mm x 61mm Big Bore Top End Kit – Works on All Years

Unleash more power from your Banshee with this complete CPI 68mm x 61mm big bore top end kit. Whether you're racing dunes or ripping trails, this package is engineered to deliver serious performance with top-tier reliability.

✅ What’s Included:

• CPI 68mm x 61mm Cylinder (Big Bore CPI Cub-style)

• Wiseco 573 Series Forged Big Bore Pistons

• Nitrite Coated Piston Rings

• Chrome Wristpins & Circlips

• Pro Design Cool Head Stud Kit

• .020" One-Piece Cub Base Gasket

• CNC Machined Stud Extenders

• ARP 12-Point Base Nuts

• Water Jacket Plugs

• Pro Design Cool Head O-Ring Kit

• Wrist Pin Bearings (Wiseco or Hotrods)

• Cylinder-to-Top Case Maxlock Stud Kit
  – Replaces OEM #s: 90116-08064-00, 90116-08388-00, 90116-08318-00

All parts are brand new and sealed in original packaging.

📦 Fitment:

• Fits all Yamaha Banshee 350 models and years (1987–2006)

• No crank or case modifications required for standard big bore setups

🛡️ Warranty Info:

• All parts backed by the original manufacturer’s warranty

• Installation must be performed by a qualified, experienced builder

• Warranty excludes failure caused by improper tuning, break-in, or assembly

• Listings and pricing subject to change without notice