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Like the car rental commercial used to say ..."Not exactly!"
When the engine is cranked, the 'cold start' injector squirts a timed amount
of fuel into the inlet tract.This causes the engine to 'catch' and air flow increases and moves the air flap down in the fuel distributor, initiating fuel injection pressure .
So, unless you have propped the air flap open slightly, no fuel will come out of the injection ports on the fuel head.
I would suggest you do NOT crank the motor with the injection lines off the fuel head. While you crank, the ignition system is making sparks. The amount of fuel issuing from the fuel head is enough to start a fire you will not be able to put out before serious damage or worse .
If you do test the fuel head this way, you need to disable the coil.
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