Description & Size Guide
Camshaft Exhaust Stage 1Stage 1 is designed for low end torque 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 increase, improved throttle response, and smooth power delivery compared to OEM.
Includes auto-decompression mechanism.
Exhaust Valve Lash: 0.200 mm.Yamaha WR 400 F 1998-2000 Yamaha WR 426 F 2001-2002 Yamaha YZ 400 F 1998-1999 Yamaha YZ 426 F 2000-2002
This item fits to following bikes.
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