So I started my research. Found a small company run by a guy named Matt (I like him already...) called Ecotrons. They've made just a couple products, but they have a very clever set of brains behind how motors should be tuned, and how they can tune themselves. Matt custom assembled a kit for me and I'm in the process of installing it all now. Nothing is bolt-on, it's all "make it fit or do without it". The kit is comprised of everything I need to get this motor running on fuel injection, minus silly things like a Variable Reluctance sensor and a trigger wheel. It comes with two 26mm Mikuni-style throttle bodies, a small fuel pump, a fuel pressure regulator, two 128g/min injectors, manifold pressure, throttle position, intake air temperature, and engine temperature sensors, two modern ignition coils, and finally a giant wiring loom ready to plug into the ECU.
My plan is (and always has been) to make it very hard to tell that the bike is fuel injected. Before the photos, let me explain where things are going. The ECU, ignition coils, sensor clips, and most of the wiring will be under the tank where the stock GIANT ignition coils had been before. The fuel pump will be housed in the stock tool tray behind the side covers and feed the injectors via a long black line that hugs the backbone of the frame and the fuel pressure regulator hidden under the back half of the gas tank. The pressure regulator will send excess fuel back to the tank via a fake overflow line in the gas cap from the space between the tank and the steering head. The trigger wheel is mounted on a little standoff to the generator rotor and the VR sensor will have a custom bracket holding it under the stator cover. The cover itself will need a big spacer so it clears the VR sensor (those things are relatively HUGE). The engine temp sensor is conveniently placed on one of the bolts under the stock ignition rotor cap and the wire is the perfect size to fill up the rubber gasket/grommet. I'll be rewiring the whole bike with a custom loom as to cut down on doubled-up wires. I'll be installing a NOS CYB93 stator and a Charley's Place regulator rectifier. Along with the LED headlight and taillight (seen here: http://www.honda305.com/forums/led-head ... t8546.html) I should have plenty of juice to run all the ignition/injector drivers and the fuel pump.
Now with the photos:
Test fitting the throttles...
Tried tightening them down to measure air filter length and broke off a cheap little vacuum nipple...
...So I relocated it on one with a stronger brass fitting and filled the old holes on both throttles...
Trigger wheel randomly placed on rotor to check out VR spacing...
Engine temp sensor in the points cover. Don't mind the old epoxy or the fact that the cable is heavily bent. I checked to make sure it wasn't kinking, it just looks bad under the insulation...
Wouldn't know it was there! Also, don't mind the stuck screw driver bit-- didn't notice till I saw the photo!...
MAP sensor hidden between the engine and frame...
Coils and ECU in their new home. Need to wrap the spark plug wires in some electrical insulation to make sure they don't talk with the ECU's internals...
Fuel pump in the tool tray...
...Once again, you'd really have to be looking to find it. The blue lines will end a bit short of where they are and be on quick disconnect fittings to black lines out to their sources...
Hard to see with the stuck quick disconnect from the old cross tube, but the fuel pressure regulator is tucked up under the side of the tank...
I seem to have measured a bit shallow for my filter length. They fit, but are VERY snug...
And finally (for now), the CYB93 stator to replace my current one...
Now that I have a place to share, I'll post updates regularly. I'm trying to get as much done as possible before the 24H of Daytona, but testing and seat fittings are keeping me from the project. Worse comes to worst I'll just end up finishing it off late in January/early February. I need to done before March though-- more on that later.........
