Hot Cams Stage 3 Racing Camshaft 4302-3IN 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!

The Hot Cams Stage 3 Racing Camshaft, manufacturer part number 4302-3IN and vendor part number 68-2186, is a high-performance camshaft designed for improved engine response and racing performance. Built for select Yamaha YFZ450R and YFZ450X applications, this camshaft uses Hot Cams Improved Throttle Response (ITR) technology to optimize the opening ramp profile and promote a cleaner intake charge.

Unlike camshaft designs developed solely for dyno power, the Hot Cams Stage 3 profile is engineered to improve both power delivery and throttle response. Its carefully developed ramp area supports a more efficient combustion cycle, helping the engine respond more quickly across the throttle range while giving the rider improved feel and control. The camshaft is designed for competition use and is intended for riders seeking enhanced performance from compatible Yamaha engines.

Fitment: Fits 2009–2017 Yamaha YFZ450R models and the 2010 Yamaha YFZ450X. The camshaft is designed to work with stock valve springs and rockers in most applications, and no core is required. Adjustable cam sprockets are supplied with some models where applicable. Professional installation and verification of valve-train clearances are recommended before operation.

This Hot Cams racing camshaft is not legal for use in California on pollution-controlled vehicles. In California, it is intended for race use only; a waiver may be available. Confirm engine configuration and application compatibility before installation.

Features:

• High-performance Stage 3 racing camshaft for compatible Yamaha YFZ450R and YFZ450X models
• Improved Throttle Response (ITR) technology for enhanced throttle control and engine responsiveness
• Engineered opening ramps help promote a cleaner intake charge and efficient combustion cycle
• Designed to use stock valve springs and rockers in most applications
• No core required
• Adjustable cam sprockets supplied with some models
• Fits 2009–2017 Yamaha YFZ450R and 2010 Yamaha YFZ450X
• Manufacturer: Hot Cams
• Manufacturer part number: 4302-3IN
• Vendor part number: 68-2186
• 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