theres a black cylinder thing next to the inlet and fuel pump, has 2pipes that come off and gose to a pipe that gose from inlet to the block but on the cg13theres no connection for it :/if it helps the pipes are reakky skinny ones just black and ones black with a green line!:/whats it for? also ive been in the peeeeeeing down rain fitting this bloody thing it best bloody work!haha is the cg13cvt much differant to the cg13or even just cg1? :/cheers