[baz-r]

good idea but in the real world it would not work as you will come across loads of problems thats why there are programable ecus out there
i cant see how you would get the bike ecu to run twice the engine size at half the revs with out major programing then theres transfering crank pickups and so on.
all engines are diffrent running diffrent size cylenders some filling them better than others at diffrent times and then you have diffrent styles of triggers and pickups

have a look into megasquirt or microsquirt for inj, inj+spark or just spark thease little babys can run almost any engine setup with without edis units and are about the cheapest things out there
theres code in the programing softwre to run roterys,jap car engines,bike engines and most common engines out there

or just use megajolt with an edis unit but this can cost almos as much and is basic with no possibilty of running injection if you wanted to upgrade to injection at a later date