Yamaha Zuma V Force Performance Reed Valve   Certainly your Zuma is staving for fuel they make them all run lean which keeps them hot and slow with no fuel to get that kick when you crack the throttle. In comes the V Force reed Valves that replaces the run of the mill run the Zuma comes with stock with metal pedals that break and ruin your piston and cylinder the number one cause of engine failure. Adding the V Force Reed Valve along with an Airsal 70cc kit will greatly improve your top plus adding simply awesome bottom end. … Read entire article »