Does your dirt bike stumble in the fast whooped out sections? Keep your flat bowl full of gas with the Pingel Power-Flo™ Dirt Valve. These valves are machined from the highest quality, lightweight billet aluminum. Test results have proven as much as twice the fuel flow over the stock petcock. So don't let your petcock be your carburetor's main jet. An adapter plate is supplied with each valve for an easy bolt on installation.