Originally Posted by yaya20
Any more input? I had a very similar failure recently. My pics are in the linked thread in the OP.
I wasn't able to find much detail about Motoryder's melted piston.
He's my neighbor and its possible he didn't post the failure here. You need to be very hot to melt a piston like that, way beyond normal combustion temps. About the only thing I can think of that would allow that would be an extremely lean condition. Those where his findings also.