🔧 Yamaha YFZ450 Top End Rebuild Kit – Hotcams Stage 1 + Kibblewhite Valvetrain (2004–2013)

Boost your YFZ450’s top-end performance with this upgraded rebuild kit featuring Hotcams Stage 1 camshafts and a full Kibblewhite valvetrain. Perfect for carbureted models from 2004–2013, this package is ideal for riders who want great OEM-style power with extra top-end snap and better long-term reliability.

✅ What’s Included:

• Camshafts: Hotcams Stage 1 intake & exhaust cams (OEM-style upgrade with added performance)

• Valve Springs: Kibblewhite chrome silicone dual valve springs

• Retainers: Kibblewhite lightweight titanium retainers

• Collars: Kibblewhite heat-treated spring collars

• Valves: Kibblewhite White Diamond stainless steel intake & exhaust valves

• Guides: Kibblewhite precision-machined bronze valve guides

• Seals: Kibblewhite Viton valve stem seals

• Hardware:

  • Valve keepers

  • Valve buckets/tappets (aftermarket, OEM spec replacement)

📦 Fitment:

Fits all Yamaha YFZ450 carbureted models:

• 2004–2013 YFZ450

• Includes SE, LE, SP, SP2, Bill Ballance, and Custom Graphics editions

🛡️ Warranty Info:

We stand behind every part we sell. All items carry a 1-year warranty against defects in materials and workmanship.

• Must be installed by a qualified, experienced mechanic

• Warranty does not cover damage caused by improper installation, tuning, break-in, lack of maintenance, or misuse

• All returns require pre-authorization and must be sent back for inspection — no exceptions

• We do not warranty parts based on photos, emails, phone calls, or outside mechanic claims alone