Product description

The Camshaft Exhaust Stage 1 System is part of the latest collection from Hot Cams.

Features:

• Stage 2 is designed for mid to top end gains
• Adds a 5%-10% power gain
• Designed and dyno proven in the USA
• Manufactured by utilizing state of the art valvetrain software
• CNC machined from 8620 billet, case-hardened steel for an exact fit and lobe profile
• Engineered to be drop-in cams, that use stock valve springs (unless otherwise noted).
• 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 dual cam engine.
Mid range to top end increase. Designed with I.T.R. technology. Includes auto-decompression mechanism. Exhaust Valve Lash: 0.220 mm.

Specifications:

• Application: Exhaust
• Exhaust Duration: 249.500°
• Exhaust Lift: 8.760 mm
• Exhaust Lobe Centerline: 103°
• Product Name: Camshaft
• Type: Stage 2
• Units: Each

To fit:

• YAMAHA YZ 250 F 2014 American Models
• YAMAHA YZ 250 F 2014 European Models
• YAMAHA YZ 250 F 2015 American Models
• YAMAHA YZ 250 F 2015 European Models
• YAMAHA YZ 250 F 2016 60th Anniversary European Models
• YAMAHA YZ 250 F 2016 American Models
• YAMAHA YZ 250 F 2016 European Models

Manufacturer part number: 4273-2E

View all Hot Cams. View all Parts and spares.

Contents

Your package will include the following:

• 1 X Hot CAMS Camshaft Exhaust Stage 1 System