Motor geek - on the ecu's you were involved with, what manufactures were they?

Where they mapped on throttle position vs rpm or boost/vacuum vs rpm?

Chuck D - I agree with your comments but if you made and changes to a carb'd bike engine it would still need rejetting

The engine already has a crank sensor fitted to work the electronic ignition, all I can see that would be needed to work the ecu would be throttle position sensor, air temp, water temp and possibly map sensor and a battery with charging system.