Need some electrical help

[mauryc]

Brought her to the launch today and had a no start. I could only get about .5 volts to the starter and the power trim. Battery is fully charged and everything worked in the driveway about an hour before (tilt/trim and motor started right up.) I'm getting 12.5 volts to the red and black to the switch, but I need a diagram to see which wirea are what for the output. Anything else it could be except the switch? I could see solinoid if it were only the starting issue, but its affecting the tilt/trim also. I did wash her down before I left so maybe I fried the switch?

Thanks,
Maury

[tsubaki]

Take a pair of jumper cables and test to see if the negetive wire is OK.
Ground one end to the battery (-) post and the other end to the engine block.
Had two times the negetive wire was broke, gave good readings but under the load of the tilt or starter it acted like a dead battery.

[spareparts]

check the ground cable, when multiple issues show up at once, its usually the ground connection

[mauryc]

NE1 have a diagram of the round omc ignition switch so I can test voltages coming off the switch?

[tsubaki]

[tsubaki]

I would have thought the problem to be with the main wire to the motor and not the switch.
The switch isn't capable of handleing any load such as the tilt or starter, only the solonoids or relays to operate them.
Have you done a load test on the battery to be sure it is up to snuff?


It really sounds like a poor connection between the battery and engine, like spare said, it will usually be the ground.
Be sure and check the connections, you can also use the jumper cables (if it will fit) up to the starter solonoid and see if that helps.