I have power to the switch and when you turn the switch the test light
goes off. So there is power when you try to crank it. The starter is good and the solenoid is good. Is there another solenoid on the motor somewhere? Thanks.

Neutral safety switch not engaged or faulty .

dont know what motors you have but most have the solinoid on the starter and then a slave solinoid, usually on the mounting plate that the wiring harness plug is attached to. the key activates the slave which sends power to the starter solinoid.

Thats what i'm thinking.

Where are you checking power on switch + or s terminal .Light shouldn't be going out at either. just saying

Try to bypass the Nuetral Safety coming off of your Thottle/Shifter, (should be a yelow with red stripe wire) if the engine turns over you have isolated the problem. Coud be a simple adjustment to the internal switch or a faulty switch that needs replacement.

Cliff

The motors in the boat are 502 EFI's. Thanks for the
replies I will try those things mentioned!

the key switch doesnt crank the motor,the starter motor cranks the motor