This kit will fit the 2010 and newer Arctic Cat and Yamaha 120
In 2010 Arctic Cat changed from the Suzuki engine to the MZ125 Yamaha engine. Even though in stock form both engines produce the same HP, the new engine shows some performance loss when gearing for faster speeds.
This Camshaft update kit brings the Yamaha engine to life.
This is a must have for the stock class racer.
Revised Camshaft for more top end performance.
Heavy valve springs for more RPM.
Advanced flywheel kit for better torque.
THIS KIT IS ISR LEGAL FOR STOCK CLASS RACING