Hot Cams Racing Camshaft Single Cam Stage 1 Yamaha Yfm350 / Yfm400 The Hot Cams Stage 1 Racing Camshaft elevates your ride's performance, marrying high-output capability with straightforward installation. Tailored for compatibility with stock valve springs and rockers in numerous configurations, this camshaft negates the need for a core and is primed for immediate use. Model-specific adjustable cam sprockets afford precision tuning while improvements to the intake and combustion processes assure a more responsive throttle and enhanced performance over standard setups. Features: High performance racing camshaft No core required Designed to be use with stock valve springs and rockers on most applications (unless noted) Adjustable cam sprockets supplied (model specific) Improved throttle response technology Improved intake charge and combustion cycle over stock Specifications: Exhaust Cam Lobe Center: 107.500 Exhaust Cam Lobe Duration at 1mm: 250 Exhaust Cam Lobe Lift: 10mm Exhaust Cam Valve Lash: 0.150mm Intake Cam Lobe Center: 107.500 Intake Cam Lobe Lift: 10mm Intake Cam Valve Lash: 0.130mm Intake Lobe Duration at 1mm: 250