Re: where is the neutral safety switch on my '07 115 Optimax?
Should be in your control. The wires are yellow with a red stripe. There will be two going to a momentary switch that will be depressed when the boat is in gear. These engines only use the starter (yellow/red wire) to start the engine so if the switch is depressed, the starter will not get voltage to engage the starter solenoid and start the engine.
As a side note, people often misunderstand this as a lockout thinking that the engine won't run. It will run just fine but it shouldn't start when the control is in the in-gear position. It's all done at the control and not at the engine.
