HOT CAMS offers you these camshaft stage 1 to equip your motocross YAMAHA YZF 400cc, YAMAHA YZF 426cc, YAMAHA WRF 400cc, YAMAH WRF 426cc. This pack includes the exhaust and intake camshaft. These camshafts have the same place and the same timing as the original one. However, the opening times have been changed to increase the performance of your motocross. During our dyno test we noticed that the engine had much more torque from start up and a much better mid range recovery. It can be mounted on an original cylinder but also the BIG BORE kit like the ATHENA for example. Ideal to increase quickly and easily the performance of your motocross. Contractual photo to come

Here are the technical data of these camshafts:

Intake duration (degrees at 1mm): 260°

Intake lobe center (degrees): 105

Intake valve clearance (mm): 0.150mm

Intake cam lobe lift: 8.800mm

Exhaust duration (degrees at 1mm): 259°

Exhaust lobe center (degrees): 105

Exhaust valve clearance (mm): 0.200mm

Exhaust lobe lift: 8.760mm

Fits on:

YAMAHA WR 400 F (CH02) 400 1998

YAMAHA WR 400 F (CH04) 400 2000

YAMAHA WR 400 F (CH04) 400 1999

YAMAHA WR 426 F (CJ02) 426 2002

YAMAHA WR 426 F (CJ02) 426 2001

YAMAHA YZ 400 F (CH01) 400 1998

YAMAHA YZ 400 F (CH03) 400 1999

YAMAHA YZ 426 F (CJ01) 426 2002

YAMAHA YZ 426 F (CJ01) 426 2001

YAMAHA YZ 426 F (CJ01) 426 2000