Okay heres a good one for ya. I have an HT-20 with a Kohler 532. I started it up the other day and I am running on one cylinder. I pulled the plug and have plenty of spark. Whats bizzare is that it seems like this cylinder isnt getting any fuel. Im not sure how thats possible because theres only one carb (feeds both cylinders). Anyways I put some ether in the cylinder and fired it back up, but it didnt burn. Seemed like it just blew straight out the exhaust. I tried straight gas, same results. I put my finger on the plug hole while it was running and felt vacuum. I am stumped. I can see both valves are moving so no stuck valves. I assume if I have spark and I put fuel in the cylinder it would at least burn that fuel for a second or two. What do you all think? Any ideas before I start tearing into this project blindly? Thanks for any help.