Hot Cams Camshaft - Intake - Stage 1 - Yamaha [40021IN]

Hot Cams Camshaft - Intake - Stage 1 - Yamaha [40021IN]

Manufacturer Part Number: 40021IN

Parts Unlimited Part Number: YZ426S1AI

Product Type: Cams & Parts

Camshaft - Intake - Stage 1 - Yamaha

Details

• Intake Lift: 8.80 mm
• Application: Intake
• Intake Duration: 260°
• Riding Style: Off-Road
• Intake Lobe Centerline: 105°
• Product Name: Camshaft
• Type: Stage 1
• Riding Style: Adventure Touring / Dual-Sport
• Riding Style: Street
• Units: Each
• Adds 5%-10% power gain
• Designed and dyno proven in the USA
• Engineered by utilizing state-of-the-art valvetrain software
• CNC machined from 8620 billet, case hardened steel for an exact fit and lobe profile
• Select cams feature Hot Cams Improved Throttle Design (ITR) technology; these cams improve throttle response throughout the entire rpm range while providing excellent power gains through the mid-range and top-end
• For low end torque.
• Made to be drop-in cams that use stock valve springs (unless noted).

Verified Fitment

• 1999 Yamaha WR400F
• 1998 Yamaha WR400F
• 2000 Yamaha WR400F
• 1999 Yamaha YZ400F
• 1998 Yamaha YZ400F
• 2001 Yamaha WR426F
• 2002 Yamaha WR426F
• 2002 Yamaha YZ426F
• 2001 Yamaha YZ426F
• 2000 Yamaha YZ426F