MAKING YOUR CARB VENT AS IT SHOULD
Dirt Bike Magazine

You drop into one of Blackwater's gnarly creek crossings and await your turn at blitzing the opposite bank, only to discover you need 5 mph more to get out of this mess. You tweak the throttle, but your bike sputters and dies. You have to push your machine from the creek, as the Zoo Crew splashes you with water and revels in your misery. Or, you are setting up your arch-rival for a last lap pass. While he takes the grooved, low line up the tabletop, you pin in and take the high route, hoping to carry your momentum down the next rough straight to the checkers. You let fly, but your bike sputters at the top of its arc, forcing a mid flight correction. By the time you get the bike back on the pipe, your rival has gained two bike lengths and beats you like a filthy rug. Your bike is the trickest non-factory weapon on the planet, yet you just got smoked like a Christmas turkey. Why? Your perfectly jetted carb bogged when you needed it most, because of a low-tech vent hose. When you drop into a stream or rise above the stadium in your best Cooper impersonation, liquid enters the vent hose, blocking it. Gravity pulls the liquid down the overflow tube and it acts like a siphon, pulling air out of the float bowl and creating a slight vacuum. The bike bogs as it tries to overcome that vac�uum in order to suck gas into the venture. That's why PC Racing invented the PC Racing Carb Vent System. We installed the PC Racing T-Vent on our XR6OOR and subjected it to the deepest creeks and tall�est tabletops we could find. With the standard vents, the mighty XR bogged and sputtered, but the PC Racing system elimi�nated all hesitation. Installation was easy, too. The filter box attached inside the XR airbox with Velcro buttons, and we sim�ply cut the stock vent hoses (one inch from the carb) and inserted the T-fittings, running the supplied top hoses to the fil�ter box. It's the best ten minutes and $17 we have spent on the XR6OOR. We also tried the system on the KX125 with good results. All bikes benefit from T�vents, especially KDXs, XRs and all 125 motocrossers.