Battery Selector switch

[mgmmojica]

When the battery selector switch is turned to #1, the starter acts like it isn't getting enough power and just makes the clicking noise. The battery isn't dead though. If I take this battery and connect it to switch #2, the engine kicks over immediately . I replaced the battery cables for battery #1 but that didn't make any difference. My battery selector switch (Guest) was manufactured in 1997, so, it could be bad, but in taking it apart, I didn't see any corrosion on the copper plates or the selector plate. I may replace it anyway, but don 't have confidence that this is the issue. Any thoughts as to what might be going on here?
Thank you

 

[MRS]

You sure the battery is good how old is it?

 

[mgmmojica]

Yes. Battery is a brand new Odyssee with 1150 cranking amps. Tried other batteries at #1 position - same thing....starter makes the clicking noise. When transferring them to battery 2 position - all started the engine. There is something preventing full voltage going to the starter on battery 1 postion

 

[MRS]

If you changed cables and cleaned all your grounds could possible be the switch. Is this a new boat to you or it has worked good and just started with this problem?

 

[dingbat]

When you replaced battery 1 cable(s) did you replace #1 ground cable as well?

If so, you’ve eliminated everything but the switch.

 

[mgmmojica]

If you changed cables and cleaned all your grounds could possible be the switch. Is this a new boat to you or it has worked good and just started with this problem?

This is a new boat to me. 1997 Trophy 2352. Haven't had it in the water yet. Just finished having the outdrive rebuilt. Would have had them check on the battery 1 problem but thought it would just need new cables.

 

[mgmmojica]

When you replaced battery 1 cable(s) did you replace #1 ground cable as well?

If so, you’ve eliminated everything but the switch.

No. Didn't replace the #1 ground cable. Hoping I don't have to as it is buried in a bundle of other cables and haven't traced out where it goes yet. But, if corroded, that could be the culprit.

Thanks