The MVVS liquid cooled engine runs between 60C and 85C. As a result, it has 5% more power than the aircooled prosport, all other things being equal. I do not think there is a fuel atomizing or evaporation problem in cooler running engines. In cold engines maybe, but 60C is not cold. Gas evaporates from -18C and up. At 87C all is in vapour state, but that happens during the compression stroke and subsequent combustion when the charge is heated evenly. Before that, only the charge that contacted the engine walls received heat, so most of the atomized gas had no chance to evaporate at all.