Yamaha Raptor 660 Valve Spring Kit (2001–2005) – Hot Cams 0926-0869

🛠️ Description

Upgrade your Raptor 660 engine with this Hot Cams valve spring kit, engineered to handle the higher lift and aggressive ramp rates of performance camshafts. Designed specifically for use with the Hot Cams Stage 3 camshaft (0925-1589), these heavy-duty springs ensure reliable valve control at high RPMs while preventing float and coil bind.

✅ What’s Included

• Heavy-duty valve springs

• Base washers

• Retainers

📦 Fitment

• 2001 Yamaha YFM660R Raptor

• 2002 Yamaha YFM660R Raptor

• 2003 Yamaha YFM660R Raptor

• 2004 Yamaha YFM660R Raptor

• 2005 Yamaha YFM660R Raptor

🛡️ Warranty Info

Hot Cams performance products are backed by a manufacturer’s limited warranty against defects in materials and workmanship.

🔑 Key Features

• Required spring kit for Hot Cams Stage 3 Camshaft (0925-1589)

• Precision-engineered steel valve springs

• Prevents valve float and ensures proper high-RPM operation

• Designed with optimal seat pressure and spring rate for performance cams

• Made in the USA

Specs

• Installed Height: 30.607 mm

• Coil Bind: 17.780 mm

• Open Height: 8.763 mm

• Spring Rate: 270 lb

• Seat Pressure: 55 lb

• Open Pressure: 145 lb

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