Motorcycle Repair: carbs, manual haynes, cause havoc

Question
I REMOVED AIR BOX ON MY 84 KAW GPZ 750.DURING A REBUILD/REMOD OVER WINTER.NOW I'M HAVING A BITCH OF A TIME GETTING IT TO RUN.I MESSED WITH THE CARBS AT LEAST 6 TIMES (YANKING OUT & ADJUSTING)
CAN YOU GIVE ME ANY ADVICE ABOUT FIXING?

                  THANKS A LOT
                  BRUCE R.

Answer
Bruce,

I'm assuming you checked for spark first before going right to the carbs.  If so you simply need to be absoulutly sure you are getting adaquite fuel delevery from the tank to the carbs themselves.  If there is a vaccuum assist on the system make sure it is working properly.  Remove all delivery hoses from carbs, turn on petcock and crank over.  You should see strong fuel flow out of all.  It not a bad idea to install inline fuel filters on each line on a bike of this age.  Next step is to clean all jets and orrifaces and make adjustments.  Here is a basic rundown on the process just incase there is something here you missed:

Disassemble, clean all jets and orifaces with solvent and COMPRESSED AIR ONLY, use NO wire or picks to clean holes/airways.  You can irreprebly damage your jet orrifaces which are extremely susseptible to even the slightest damage. Rebuild carbs with new gaskets and make sure your floats are set correctly. . Do not overlook the float level, be very sure you are not starving for fuel or allowing too much to enter, the spec will be in a good aftermarket manual, Haynes or Clymer. Bend the tab at the center of the floats to adjust.  Also be sure your floats have not sprung a leak and are sitting at the bottom of the float bowl filled w/ fuel.  I've seen this in a few older models w/ sottered copper floats.   Inspect the needle valve for smooth operaration and any wear and debris, be sure it is not getting stuck in the closed position stopping fuel from entering. In relation make sure fuel flow is unobstructed and use a good in-line fuel filter from the tank to the carb. Even tiny particles in the fuel can get logged in critical areas and cause havoc. Air to fuel ratio screw is typically set at 1 and 1/2 turns out from seated. After all is said and done, reassemble, turn on fuel and run. Finally set the idle screw.
 Hope this may help you,

Mike