Part ID on head

Discussion in '2012+ CRF250L Tech Talk' started by MrWesson, Nov 6, 2016.

  1. MrWesson

    MrWesson New Member

    Can anyone tell me what this does?


    I ask because it looks like it should be connected to a tube and concerned with water/dust getting in.

    Its also worth noting I have a 2011 CBR250R engine in my CRF250L(nearly identical).