We strongly recommend the Precision tool kit for cam change.
Instruction video: YouTube
Includes 4 selected cams:
One No. 80 - Cam 3.5mm stroke Standard (Black)
One No. 81 - Cam 3.5mm stroke Smooth (Blue)
One No. 82 - Cam 3mm stroke Medium (Green)
One No. 83 - Cam 2.6mm stroke Short smooth (Red)
Only for Stingray and Stingray X2.