How dose "Hot pipe" or dragon ignition system work?

[Bandit1912]

I just bought a 2010 IQR from a guy and am wondering how to work the dragon button on the left side of the handle bars? When he was showing the the sled he hit it as the kill switch and it shut off. Do you need to have the RPM up or did he wire it to be the mill switch because he dose not have a kill switch on the right side where there is usually one.

P.S I am new to IQR and any information would be awesome even if it's not relevant to my question. I'm trying and want to learn everything I can about the machine.

 

[inspector01]

Retards ignition to increase EGTs, and consequently pipe temp.

 

[winter4ever]

I would only use that if you are racing. you push the button and hold the throttle wide open to increase the pipe temp, the higher pipe temps make the sled run better right off the start line. however it is really hard on the reeds and can cause them to break, so use it sparingly.

 

[Bandit1912]

Thanks. what would happen if you push the button without holding the throttle at all?

 

[inspector01]

Thanks. what would happen if you push the button without holding the throttle at all?

Not much.

 

[Leftys]

I don't speak from experience, as I have never been around one of these machines. As far as theory goes, if you retard the ignition timing enough with out throttle the engine will shut down at idle. By giving the engine throttle, the higher rpm and rotational mass of the engine and weight of the clutch keep it moving to be able to run at that ignition timing. If the engine were to stay running at that ignition timing, power would be very low and the engine would overheat and possibly have a mechanical failure. Hope this makes sense.

 

[Bandit1912]

Thank you that was exactly what I was looking for

 

[06IQRMOD]

It retards the timing, pushing raw fuel into the pipe and igniting it to make it hotter. He probably hooked up the dragon holeshot button as the kill switch because the factory kill switches look horrible

 

[Bandit1912]

How can I make sure that's what he did I don't want to use it as a kill switch if it's the dragon button.

 

[inspector01]

How can I make sure that's what he did I don't want to use it as a kill switch if it's the dragon button.

You can trace the wiring, or just press the button, if it shuts off like a kill switch, its a kill switch. If it stays running, and sounds different, its the dragon button.