my one lil buddies cr125 had one of these on it when i tore it down to send to oconnor racing for a bore job, the lines had splitters all over the place, and ran to the foam filter block in the airbox, it looked a mess, and didnt make sense to me, we threw it out and put new regular vent lines on it,
does being in the airbox, and having (negative) pressure applied to the vents have anything to do with the anti-vapor lock claimed, vapor lock ???? wtf ?????
sounds like bunk to me