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 race car style ignition

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hutch17
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PostSubject: race car style ignition   race car style ignition Icon_minitimeSun 10 Aug 2014, 8:58 am

Like the title says, I'd like to make a race car style ignition for my lt1000 with the 16.5 hp briggs. I've read on the forum that you need a relay to switch the polarity of the feed to the coil. I was wondering if anyone has used an on switch to turn the circuit on and then a momentary push button for the starter as seen in many race cars, mud trucks, ect. Any help is appreciated thanks in advance!
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Doc Sprocket
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PostSubject: Re: race car style ignition   race car style ignition Icon_minitimeSun 10 Aug 2014, 9:47 am

I'm a bit confused here... Switching coil polarity? Ignition?

If its a simple pushbutton start you're after, it's dead simple, no relays required. You'd need to run a positive feed from the battery, thru a momentary button, thru a fuse, to the trigger terminal on the starter relay (solenoid). Run the kill wire from the magneto coil to a toggle switch, then from the other switch terminal to ground.

That's the simplest form. Sure enough, you COULD make it more complex than that. How complex do you want it?

You COULD I suppose, use a relay on that same toggle switch to make it so that it cannot crank with the switch off- then again, you could just use a DPDT switch. There's probably 10 ways to handle this.
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hutch17
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PostSubject: Re: race car style ignition   race car style ignition Icon_minitimeSun 10 Aug 2014, 10:27 am

I read a thread in which someone said you need a relay but that was when using an automotive ignition. I guess mine is way simpler. What size wire would be sufficient?
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hutch17
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PostSubject: Re: race car style ignition   race car style ignition Icon_minitimeSun 10 Aug 2014, 11:46 am

I'd also like it to not crank with the switch off, as that's pretty much the point of the switch haha.
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Doc Sprocket
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PostSubject: Re: race car style ignition   race car style ignition Icon_minitimeSun 10 Aug 2014, 11:54 am

I would think the point of the switch, is to shut the engine OFF...

18ga wire is more than plenty. Both circuits are low-current.
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hutch17
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PostSubject: Re: race car style ignition   race car style ignition Icon_minitimeSun 10 Aug 2014, 5:50 pm

Ok awesome thanks a lot for the help!
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