with the clutch lever back to the grip secured by tie wrap, whatever, u can spray int duct while holding starter button/throttle and actually fire and run the bike as long as spraying fuel. if already convinced fuel problem, spraying int eliminates need for fuel pump and injectors. i assume fuel pump priming when ign switched on? if not, probe harness connector to pump with test light for power and ground when switched on. both good u have a bad pump. tank off test injector signals necessary for them to spray. 2 wires to each inj, all 4 have a common colored wire, white/red stripe, supply positive power constantley to inj with switch on. probe each, test light grounded for positive volts. each inj has a different colored wire that supplies timed ecu ground signal to inj to fire them. probe each inj wire with test light on battery positive while cranking bike. u will see test light pulse as ground signal applied at inj. either of these not working as described u have a electrical problem preventing inj fueling. go to the common ground box/all fuses first. not inj themselves, they dont just clog or stop working suddenly with correct power. i dont test older fuel pumps, i replace them. the replacement $40-50 pumps on ebay work great on stk applications and restore power.