'01-'08 Yamaha YZ | WR 250F - Hot Cams Intake Stage 2

'01-'08 Yamaha YZ | WR 250F - Hot Cams Intake Stage 2

Dual-cam motor: intake and exhaust cams sold separately. Excellent top-end power increase and good over rev. Intake cam includes adjustable cam timing sprocket. Exhaust cam includes auto-decompression mechanism. Uses stock valve springs.

Intake:

Intake lift (mm): 8.5 Intake lobe center (degrees): 111.5 Intake duration (degrees at 1mm): 256 Intake valve lash (mm): 0.15 Note: Divide mm values by 25.4 for inches.