Wiring a temp gauge to starter switch.

[rustydiver]

In the process off fitting an aftermarket temp gauge and want to wire it up to the Ing switch so that it comes on and goes off with the starter key/ switch.

Which terminals do I connect it. It's a basic beta marine controll panel with rev counter, key switch and lights.

[Tony Brooks]

The same one that the warning lamps and one of the rev counter positives connect to. It is likely to be a 6mm blade and it may have two such blades on one rivet. If one is spare use that one.

 

I can't tell you the number or letter because they tend to differ so I would use a test lamp or voltmeter to see which terminal becomes live when the ignition is turned on.

 

You may wish to consider an in-line fuse but many don't. Beta may alreday have a fuse alongside the main harness somewhere.

[rustydiver]

Thanks.

That's just reminded me, I've got some spare fuse holder in the garage will pick one up before we go tomorrow.

[by'eck]

If there isn't a spare blade on the ignition switch piggy back lucar blade connectors can be used, which provide a duplicate blade whilst allowing connection to existing one.