In today's video we are going to talk about an easy fix for your dirtbike. The vent hose on the gas tank cap caused both of the x-pro storm 125cc dirt bikes to stall, surge, bog, and eventually die. At first we thought we were having carburetor issues , but soon determined it was the valve in the vent hose sticking. This causes the tank not to be able to breathe and causes the bike to starve for fuel.
