Camshaft Stage 2 from manufacturer Hot Cams for Yamaha YFM 660 R Raptor (2001-2005) / YFM 660 R LE Raptor Limited Edition (2003-2004) / YFM 660 R SE Raptor Special Edition (2005).
Specifications:
- made with Computer Numerical Control (CNC) machinery from forged 8620 steel and hardened;
- designed and tested on a dynamometer in the USA;
- designed using software for the valve train;
- ensures a power increase of 5%-10%.
The camshafts include Hot Cams Improved Throttle Design (I.T.R.) technology - these camshafts enhance throttle response across the entire RPM range while providing significant power increases in the mid-range and at high RPMs. Stage 2 is designed for increased torque and power in the mid-range to maximum RPM.
Designed for direct installation, using original valve springs (unless otherwise specified).
For engines with two camshafts. The original auto-decompression mechanism is used.
Technical data
- exhaust valve clearance: 0.250 mm;
- intake valve clearance: 0.200 mm;
- brand: HOT CAMS;
- application: exhaust, intake;
- exhaust duration: 259°;
- exhaust valve lift: 10.28 mm;
- exhaust lobe centerline angle: 104°;
- intake duration: 246°;
- intake valve lift: 9.75 mm;
- intake lobe centerline angle: 106°;
- type: Stage 2;
- price: for one piece.
The complete application list can be found below.
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