500CC 180 degree parallel twin motorcycle conversion

[triangles95]

I am planning on implementing ignition control and sequential fuel injection on a 500CC 180 deg. parallel twin. More specifically a '94 Kawasaki Vulcan 500. Since ignition timing seems to be most difficult, I'll implement that first. Once I have spark control working, I'll move on to adding the fuel injection part. Right now, after months of reading the forums and pouring over the documentation, I still find myself somewhat confused and acknowledge this may be an exercise in futility. Does my plan below make sense, does anyone have a better suggestion?

Ignition:
Use a 36-1 trigger wheel on the flywheel and 1 tooth trigger on the intake cam.
Am I correct in thinking the µs can use the 36-1 to know when cylinder 1 is at TDC and the cam sensor to discern Combustion from Exhaust stroke. Then with this information the µs can calculate the 180 degree crank rotation to fire cylinder 2? Initially I plan on using only these two sensor as the stock ignition is only RPM advance.

If anyone has sources for sensors that could be used for cam/crank it would be helpful. I was thinking of using Hall sensors since I think in theory they work better than VR. Does one sensor type or the other work better with the µs?

I would leave the stock ignition intact and use a timing light to get the µs synchronized with the factory CDI box. Then I could remove the factory ignition and use µs in it's place. I may need a refresher on ignition coils but in a conversion of a suzuki DR450 over on the thumper talk forum. he said the µs could not use the factory coil? I hope this is something particular to that bike. Is there any reason why I wouldn't be able to have the µs fire my stock coils?

Sequential Fuel Injection:
With the ignition functioning equivalent to stock I would move on to the FI goodness I would make a custom intake similar to what was done on a Ninja 250 is in this thread. I plan on using a 38mm throttle body from a Suzuki Burgman AN400. It has the TPS, MAP sensors built in. I could simply add an IAT to the intake plenum and a coolant temperature sensor. I have two injectors from a Ninja 650 that I plan to use and I'll figure out what vehicle I'll use a fuel pump/regulator from when I get to it. I'm debating on whether or not it's worth while to use an WB O2 for a feed back loop. At the least A WB O2 would be very helpful for tuning.

I think that just about sums it up. Am I missing anything? Does anything stick out as a no way in Hell will that work?

[24c]

You can use a cased MicroSquirt with normal motorcycle coils, but you have less potential problems, with separate ignition drivers and logic level outputs. I have no issues running wasted spark on a four cylinder motorcycle, so my first tip would be to run wasted spark mode. You can time your MicroSquirt off this dual coil set up, later you can move to sequential when you get your cam sensor to work, which can be problematic for some.

You might find if you look in msruns there is a similar project to yours and there are a few motorcycles now.