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HOT CAMS Camshaft - Stage 1 for Yamaha YFM660R (Raptor 660). Designed for riders looking for a more responsive throttle and optimized engine behavior without heavy modifications, this Stage 1 is a lightweight and effective tuning solution for quads.
Developed and validated on test benches and then tested in competition by recognized teams.
Increases torque and power with no other modifications needed: ideal for a small plug-and-play upgrade.
Cam profile suitable for road/recreational use while maintaining good engine flexibility at low and mid RPMs.
Delivered with two complete sets of adjustment shims for precise timing adjustment.
This kit is aimed at owners of YAMAHA YFM 660 RAPTOR (models 2003 to 2005) looking to improve their quad's responsiveness. Installation requires precise valve timing and the use of specific tools: we recommend having the installation done by a qualified mechanic to ensure the reliability and safety of the adjustment.
Brand: HOT CAMS • Category: Camshaft • Manufacturer Reference: 4011-1
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