Do I need an ignition switch?

[Smithy]

I am building a minimalistic bobber out of a Suzuki GN400, which as you probably know uses a CDI box and magneto for its ignition source. The only experience I have had with magnetos of any sort is on old British bikes so I don't understand the Suzuki set up.

My question is do I need the ignition switch? As the ignition is self generating what does the ignition switch do? Does it earth out the magneto like the old Brits to stop the bike starting?

I ask as a) I don't understand electrics and b) I intend to run the bike batteryless with as little wiring as possible for minimal lighting.

Cheers chaps.

[guest18]

I'm afraid I'm no electrical guru, however the main risk from leaving ignition on (apart from the security issues of course!) is flattening the battery, given the absence of battery I don't see any problem with losing the ignition switch. Personally I'd have a concealed switch to disable the ignition circuit, but obviously your project so my opinion is irrelevant ;-)
Looking forward to seeing the result! S

[SteveC#222]

Smithy, PM me your email address - I have A basic motorcycle wiring guide which use to be on the web which I can send you a copy of. As well as explanations of basic electrics it has a number of wiring diagrams which you might find very useful.

[Smithy]

Thank you both for you input. Steve when I can figure out how to PM you I will do just that.

[SteveC#222]

Click on the little speech bubble below my Avatar and it will take you to the PM page. 

[SteveC#222]

Smithy, check your emails you should have the files. It decided to send them as 15 individual files ratheer than in a folder but they are all there.  Hope they are some help.