Maybe not on the coil if the flywheel is different. But i would find it a bit strange if the block architecure for the 3 different motors was not the same. But then I am not up on the specs, bore and stroke.
There are a few different covers, seems the GXV140 has that one particular type, but the 120 and the 160 ive seen with the other two types.
I would have expected the carbs to be different. If not in overall design at least in jetting.
I will get a chance to look at the 160's one day.
