I have a Yammy 2005 2 stroke 9.9 MSHD I am trying to rebuild the carb & fuel pump, In the kit there is a pointed needle adjuster screw, can someone pls tell me where this goes? I see no screw like this on the carb so Im guessing its kinda hid, I looked at the schematic at marineengine.com but the photo is not clear enough for me to tell the needles location, is it under a plug? and if so how do I get at it, pls set me straight, thanks