Fits: PZ20 NST Buyang Coolsports AIM-EX Kazuma 50cc 70cc 90cc 110cc 125cc.Replacement part for many 4-stroke ATVs, Dirt Bikes, Go Karts and Scooters with horizontal engine.Models: Kazuma Meerkat 50cc Atv Carburetor,Kazuma Falcon 90 Atv Carburetor,Kazuma Viper 110cc Dirt Bike Carburetor.Function: Increase the horsepower and airflow for your bike, and have more fun with the power at your finger tips.Material: Made of international ATC12 Aluminum Alloy.Can effective anti-oxidation and anti-corrosion.Fit:Kazuma Baja 50cc 70cc 90cc 110cc 125cc Fit:2004 2005 2006 2007 2008 2009 2011 2012 2013 Honda CRF80F Fit: 1979 1980 1981 1982 1983 1984 Honda XR80 Fit:2004 2005 2006 2007 2008 2009 2011 2012 Honda CRF50 Fit:1984 1985 1986 Kawasaki KLT110,1. Make sure the air cleaner is clean. 2. make sure the choke lever is OFF while running. 3. Warm the engine up for 3-5 minutes. 4. Turn the mixture screw clockwise until fully closed, then turn the mixture screw 2 full turns out. 5. Adjust the idling scre