Got one, 1986 14hp Kohler 8 speed. This one lunger is so bad at air pollution that I use it to test my CO detectors in my barn, after 5 minutes the digitals are blasting away with 500-600 ppm !
But it is truely a lovely beast that has outlives 3 of my rich golf neighbor's POS Craftsmans.
Plus it explodes a good blast when hot at shutdown. Love it. Blam !