Believe it. It can happen with nearly every kind of engine, including bikes and cars. Overfilling oil is/can be BAD and will foam the oil. Foamed oil is nearly the same as no oil at all.onepointone said:the whole "oil foaming" thing is a good concept, but i dont know if i buy it. i have never heard of oil foaming because of this. as you move around, the oil moves to different sides of the oil pan, same with cars, and it is going to submerge the crankshaft a little bit in oil. i dont really know where im going with that, but i just dont see oil foaming because of that.
I am a Auto Mechanic and have seen it happen before.