Quadra 100. I just ran it yesterday to make sure it wasn't absolute Junk, Because to me, even when Brand New, Quadras look like Junk! Anyway, other than the two chips out of the one head fin, it's all there. The rear of the crankshaft has been milled off to be flush with the back of the engine because it has an On Board Starter attached! And it works, like I said, we started it yesterday! Started on the first shot! Oh yeah, and it's on Ignition.