Have Boat Questions? Ask a Boat Repair Expert.
Hello my name is ***** ***** I will assist you. First thing to check if there is not any spark is to check the safety lanyard switch in the control box, make sure that is is in the on position with the lanyard attached. If that is ok then go at the engine and find the black yellow wire going to the switch box. Disconnect this wire and check again for spark. If there is spark now then the problem is either a defective ignition switch or safety lanyard switch or a broken wire within the wiring loom to the engine.
If still no spark then you would need to take it to a marine mechanic so that he can troubleshoot all ignition components.
If you require further assistance let me know.