During a tournament on Eufaula, 1992 Mercury 175 HP XRI quit running, SN 0D167948. Removed engine cowl and found that there was a fuel leak. Primer bulb would not stay primed, went weak shortly after primed. During a closer inspection, while priming primer bulb, fuel would leak out of brass elbow weep hole located on the top back port side corner of the throttle body. I've looked on Mercricruiser Parts Book, Cat.# 90-81741892, Fuel Management System (Breakdown) and could not find this fitting. There are two fuel lines coming from the Pressure Regulator, PN 15027, to the fitting and another to a fitting just below the one with the weep hole (If I remember correctly). I've researched a little on here using the "Search", and found that it could either be the VST or pulse pump. I must be missing something, because I can't find either one in the parts book. Borrowed pic for reference.jpg I stole this pic from one of our BBC members for reference. I've down loaded the parts book and maintenance manual for this engine, however, I need advice on where to start. Also, what parts kit currently would be needed, if known. I'm mechanically inclined, 39 years as a helicopter mechanic, so I believe I can tackle this issue once I have better knowledge on where to begin. Thanks, Bill