Greg Shearer 7 #1 Posted June 13, 2017 Exhaust gasket k91 4 horsepower Kohler and exhaust tube Share this post Link to post Share on other sites
AMC RULES 36,937 #2 Posted June 13, 2017 We need more to go on here. 1 Share this post Link to post Share on other sites
Achto 26,199 #3 Posted June 13, 2017 I'm going to guess that the K91 you have was not equipped with pipe threads in the exhaust port. You can run a 1/2" pipe tap into the hole so that you can use common pipe for the exhaust. You can also make a flange to bolt to the engine with a piece of pipe welded to it to get where you need to be. As far as the gasket, I would try ebay. 1 Share this post Link to post Share on other sites
WheelHorse79 271 #4 Posted June 14, 2017 That's what I did to the K91T I bought last year to put on my RJ-58 that had the wrong model Briggs on it. I didn't have a tap, so I took it to a machine shop and they tapped the 1/2" pipe threads for $10. Didn't need any gasket, just screwed the pipe elbow directly into the block. Seems to work real well. 1 Share this post Link to post Share on other sites