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05 Yz 250f Carb jets

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If I am looking at the bottom of the carb with the bowl removed I can see the main jet and two other jets. I need help identifying which is the pilot and what is the third jet?

The service manual contradicts b/c one diagram shows the pilot jet nearest the air/fuel mix screw and another shows it on the opposite side of the main jet. The mysterious third jet is a #72. Main jet is 188 and what I think is the pilot has #45. So my question is what is that #72 jet?

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Thanks guys it was the starter jet I was wondering about. I didnt see anything in the manual about that and the parts schematics just call it a "jet".

This bike has a high comp piston, hot cams, and Yoshimura exhaust. Seems like it's still too lean so I'm going to try going up another size on the main or maybe move the needle a notch.. I guess I'll leave the starter jet alone for now.

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