90 hp Mercury - Ran Great, Shut Down - Wont Start

[TritonAg]

2003 90hp Mercury on 16.5 ft bass boat - low hours and in good shape. Motor runs great, starts quickly, however after fishing several locations, shutting down and starting up again, once we got to dock and ready to load - it would not start,

Cranking fine, fuel supply fine - it seems like the kill switch is activated. The kill switch is on the gear and throttle box near the console and is in the up RUN position so at least I know it is not this.

Any help appreciated. At least we were at the ramp.

 

[racerone]

Check for spark at the plugs.

 

[dirtninja]

Play with the throttle and make sure you press the button on the bottom of the throttle lever.