Stink Racing

Had a bit more time to look at things. F5Dave came round and we started it up and looked and poked a bit and lit it up with a timing light.
Dave made suggestions and went home to finish his bike and I got into following the suggestions.
With the multiple minor tweaks done I fired it up again.

Runs pretty sweet. Revs up OK, too slow on the back-off but that could change with timing/advance curve/jetting changes.

It all looks close. Lack of money says ...

Bugger. I started the bike up (1 kick!) and started adjusting the curve on the Ignitech. It was liking the advance a lot (about 17° total). then it started running higher in the rev range; about 7000rpm.
Shut the throttle. Still revving.
Switch off. Still revving.
Disconnect all power and computer. Still revving.
Pull plug leads off. Still revving.
Put foot over tail pipes. Stops.

Bugger. Shit. Pull heads off. Bugger.

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The bike is fully wired with the ignitech and has been running. As it now has 'go' I decided to give it some 'woah'. Standard ZXR250 brakes up front and rear. Should be enough for now. I remember it being pretty good on the brakes.

I've been looking at the pickup system I'd made up and decided that to needed redoing. First step was to strip the flywheel to pieces and remove the steel and magnets.
Next step was to make a new backplate and mount points for the two pickups. As ...

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Well, finally a little progress with the purchase of the Ignitech ignition. Sorting the wiring and then instal the curve supplied by Wobbly (included in the price).
Maybe I will make it to the 2013 PMCC Summer Series...

The project is waiting for funds to continue.

A programmable CDI required and bills to pay. I'm hoping it will be running in about a years time if things go well.

Expert and others are correct about the polarity of the pickups. I have fixed that issue. The pickups are now at 90° and it works. I'm working on the final design backplate now and mounting the triggers so they adjust as a pair (the software for the CDI allows for any other changes to the timing to be made).
I had intended to race it at the Taupo Road Race Spectacular but a lack of money has forced me to withdraw my entry. That also means not much is happening on the project as funds have ...

The CDI issues have been resolved. The Jaycar cheapies work well - when the correct wires are attached.
The stator I was using had the high voltage CDI wires cut off and only the lighting circuit wires left. Novice that I am I used those. Wrong. It works on the RGV CDI as that has it's own step up transformer in the unit so it doesn't need the high voltage charge. In fact the RGV stator only has power that will be rectified. I don't know that.
Anyway, back to the current CDI set up. ...

I have had the engine running on an RGV250K CDI module but it had a miss which I suspect is the timing advance built into the CDI.
As the RD400 didn't have an advance curve I decided to try the simplest CDI I could find - Jaycars kit KC5466. No problem assembling the CDI and checking it's all OK but it requires an input of 350VAC...
I measured the output of the stator on one wire and got between 8VAC and 12VAC. A friend of mine tried a trick of putting one wire to earth and got 20VAC ...