[rjmorel]

So I got to thinking today about my 70's racing motocrossers that had 2 stroke motors. Which motor would last longer if you had an air cooled 4 stroke and an air cooled 2 stroke or both water cooled for that matter and rode them basically the same, like commuting same distances and same speeds. Would they roughly last the same amount of miles? Or would 4 stroke last longer with pressurized oil lubing it. Or would 2 stroke last longer always having clean oil lubing it either from a oil injector or premix in the tank.
Anyone have any hard data on this? Say between 250 single cylinder motors with same cooling and same carb or fuel injection?
rj