Exhaust camshaft Stage 1 from manufacturer Hot Cams for Yamaha WR 450 F (2003-2015) / YFZ 450 (2004-2009) / YFZ 450 BB (2006-2007) / YFZ 450 LE (2004) / YFZ 450 R (2009) / YFZ 450 R SE (2009) / YFZ 450 SE (2005; 2007) / YFZ 450 SP (2006; 2008) / YFZ 450 SP2 (2008) / YFZ 450 SPE2 (2007).
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 1 is designed for increased torque at low RPMs.
Designed for direct installation, using original valve springs (unless otherwise specified).
For engines with two camshafts. The auto-decompression mechanism is used.
Technical data
- exhaust valve clearance: 0.200 mm;
- brand: HOT CAMS;
- application: exhaust;
- exhaust duration 265°;
- exhaust valve lift: 8.670 mm;
- exhaust lobe centerline angle: 103°;
- type: Stage 1;
- price: for one piece.
The complete application list can be found below.
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