Carb Question.. Trail Boss 6x6

[BustedPinion]

This has the Kohler 2 stroke OE engine. many of you have read i have a issue with the rpm screaming uncontrollably in about 3 seconda after starting it. Here is the question. I was told by jeff t boss

Does this have a primer pump? if so, make sure engine isn't continuing to draw fuel through the lines after it starts. Easiest way to check id to pinch off both lines after the engine starts.. If it doesn't have a primer, disregard.

ok, i checked, there are 2 lines the PO hooked up. this engine is different to me.

The first pic above is the rear of the carb (facing back of 6x6) , i assume this is the fuel pump..
Q: is this the line the primer goes on?


Now this second pic is the side/front facing the front of 6x6 .
Q: the fuel line going in, is that the primer line? im not sure which one. and yes both are wide open! or is that a vent line to the tank? im lost..