Yamaha YZ 450 F (CJ 23) [2019] - Camshaft Exhaust - Stage 2

HOT CAMS exhaust camshaft Stage 2 for Yamaha YZ 450 F

The HOT CAMS Camshaft Exhaust - Stage 2 is an exhaust camshaft for the Yamaha YZ 450 F (CJ 23) in the 2019-2019 model year range. The design of Stage 2 is aimed at larger applications and requires further engine optimization so that the camshaft can develop its intended potential.

Technical data

• Version: Stage 2, exhaust camshaft
• Exhaust Cam Lobe Center: 106.450°
• Exhaust Cam Lobe Duration at 1 mm: 260,390°
• Exhaust Cam Lobe Lift: 10,160 mm
• Exhaust Cam Valve Lash: 0.185mm

Coordination and assembly

Further improvements such as high-compression pistons and a larger carburettor are planned for the use of Stage 2. These components should be coordinated with each other. HOT CAMS develops its camshafts on test benches and tests them with leading teams.

Two sets of valve washers are included for precise adjustment. The assembly and necessary preparations should be carried out by qualified specialists using suitable tools.

Vehicle assignment

• Yamaha YZ 450 F (CJ 23), built 2019-2019