Join Date: Jan 2015
Location: A stone's throw from Luckenbach, TX
Year/Make/Model: 1996 Kawasaki Vulcan 800 Classic
Float bowl must come off; not an option. To not take it off, and clean/diagnose inside it would be a waste of time to even pull it in the first place. Inside that bowl is where all the action is . . . and getting float blow screws out always suck on ALL carbs. We all hold our breath when attacking the carb for the first time on our new/used bike, and we all have our tricks to get it off.
Start with a NEW phillips bit that fits perfectly. #2 works on most. Getting an impact driver like gearhead said can work too. If not, and the phillips slot is rounded/wasted, do what my 15 year old grandson taught me: Find a torx bit that fits snugly, hammer it in softly until it bites, then try it. That works most of the time. If not, cut a slot in it with a hack saw then use a flathead. Last resort, cut it off flush, then drill it out and try an EZ out. If that doesn't work, then just drill and retap it once the bowl is off. Sucks but necessary to get inside. Good luck!