Hot Cams Stage 1 Racing Camshaft 4286-1IN for Yamaha YFZ450R and YFZ450X

WE RACE ON THE TRACK, NOT THE DYNO! Most camshaft designs are developed only on a dyno. Good camshaft designs not only increase power, they also improve throttle response. However, more power and better throttle response is a difficult design problem. Hotcams’ ITR technology solved this dilemma through highly engineered opening ramps not found on other cams. Using ITR technology, the critical ramp area is designed to give your engine a cleaner intake charge and a more efficient combustion cycle, making your engine more responsive at all throttle openings and giving the rider better feel and control of the engine! You will notice the difference!

Upgrade your Yamaha sport ATV with the Hot Cams Stage 1 Racing Camshaft, manufacturer part number 4286-1IN. Designed for responsive performance, this high-performance camshaft uses Hot Cams Improved Throttle Response (ITR) technology to optimize the critical valve-opening ramp area. The result is a cleaner intake charge, a more efficient combustion cycle, sharper throttle response, and improved engine feel across the throttle range.

The Hot Cams 4286-1IN Stage 1 camshaft is designed for use with stock valve springs and rocker arms in most applications, helping simplify installation and performance upgrades. No camshaft core is required. This racing camshaft is engineered for riders seeking stronger engine response and better control on the track or in competitive off-road use. Adjustable cam sprockets may be supplied with some applications.

Fitment: This Hot Cams racing camshaft fits 2009–2017 Yamaha YFZ450R models and the 2010 Yamaha YFZ450X. Verify model year and application details before installation. This product is intended for racing use and is not legal for use in California on pollution-controlled vehicles; a California race-use waiver may be available. Professional installation and appropriate valve-train setup are recommended.

Features:

• High-performance Stage 1 racing camshaft for improved engine response
• Hot Cams Improved Throttle Response (ITR) technology
• Designed to improve throttle response and rider control at all throttle openings
• No camshaft core required
• Designed for use with stock valve springs and rocker arms in most applications
• Adjustable cam sprockets supplied with some models
• Fits 2009–2017 Yamaha YFZ450R and 2010 Yamaha YFZ450X
• Manufacturer and vendor part number: Hot Cams 4286-1IN
• Race use only in California on pollution-controlled vehicles; waiver may be available

Fitment:
2009 Yamaha YFZ450R
2010 Yamaha YFZ450R
2010 Yamaha YFZ450X
2011 Yamaha YFZ450R
2011 Yamaha YFZ450X
2012 Yamaha YFZ450R
2013 Yamaha YFZ450R
2014 Yamaha YFZ450R
2015 Yamaha YFZ450R
2016 Yamaha YFZ450R
2017 Yamaha YFZ450R
2018 Yamaha YFZ450R
2019 Yamaha YFZ450R
2020 Yamaha YFZ450R
2021 Yamaha YFZ450R