Add an upgraded HD cam sprocket to your setup with an adjustable +/- timing wheel. Advancing the camshaft allows the valves to open and close sooner to help improve low end performance, while retarding the camshaft will allow the valves to open later which helps increase high rpm overrev performance at a loss of low RPM torque. This cam sprocket serves multiple models and has 2 cam timing marks for MSX and 110 models.
Specifications:
- A change of +/- 2.5* degrees of timing per line. (ADVANCING THE CAMSHAFT WOULD BE ROTATING LEFT TOWARDS 11:00 WHILE RETARDING THE CAM SPROCKET WOULD BE ROTATING RIGHT TOWARDS 1:00)
Note: Verify your sprocket degree before install by lining up the sprocket teeth with the inner pin that locks against the camshaft. Once lined up, Loctite & tighten the bolts, then re-check the cam timing is matched up. Ensure to turn the engine over after a cam sprocket change, or check clearances to view the maximum degree that can be changed either direction.
Note: Cam sprocket is not set to default position when shipped due to fitment for multiple models, ensure all 3 bolts are tight with Loctite. Please see information below for default position placement.
- CRF125 - Use middle 110i mark
- CRF110 - Use middle 110i mark
