Hot Cams Stage 2 Racing Camshaft 4128-2 for Yamaha YFM700G Grizzly Fi 4WD

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 Grizzly with the Hot Cams Stage 2 Racing Camshaft, manufacturer part number 4128-2 and vendor part number 4128-2. This high-performance camshaft is engineered for race applications and is designed to improve throttle response, engine responsiveness, and rider control across the throttle range. Hot Cams Improved Throttle Response (ITR) technology uses carefully engineered opening ramps to promote a cleaner intake charge and a more efficient combustion cycle.

The Stage 2 camshaft is designed to work with stock valve springs and rockers in most applications, helping simplify installation while delivering performance-focused valve timing. No core is required. Adjustable cam sprockets may be supplied with select applications; verify the contents and installation requirements for your specific model before assembly. Professional installation and proper valve-train clearance checks are recommended.

This Hot Cams 4128-2 racing camshaft fits 2007–2013 Yamaha YFM700G Grizzly Fi 4WD models with independent rear suspension (IRS), including 2007, 2008, 2009, 2010, 2011, 2012, and 2013 applications. Confirm the vehicle model and engine configuration before ordering. This product is intended for racing use and is not legal for use in California on pollution-controlled vehicles. A race-use waiver may be available where applicable.

Features:

• High-performance Stage 2 racing camshaft for improved engine response
• Hot Cams Improved Throttle Response (ITR) technology
• Engineered opening ramps for improved intake charge and combustion efficiency
• Designed to use stock valve springs and rockers in most applications
• No core required
• Adjustable cam sprockets supplied with some applications
• Fits 2007–2013 Yamaha YFM700G Grizzly Fi 4WD models with IRS
• Race use only in California on pollution-controlled vehicles; waiver may be available

Fitment:
2007 Yamaha YFM700G Grizzly Fi 4WD [IRS]
2008 Yamaha YFM700G Grizzly Fi 4WD [IRS]
2009 Yamaha YFM700G Grizzly Fi 4WD [IRS]
2010 Yamaha YFM700G Grizzly Fi 4WD [IRS]
2011 Yamaha YFM700G Grizzly Fi 4WD [IRS]
2012 Yamaha YFM700G Grizzly Fi 4WD [IRS]
2013 Yamaha YFM700G Grizzly Fi 4WD [IRS]