The Kohler I bought and I was planning on using in my 1816 instead of the Tecumseh ended up it had a broken rod due to lack of oil. No time to tear down and access damage so found a 18hp Honda. It is suppose to be a runner. I have another machine (not a skid) that has a 20hp Honda but was surprised that the carb and filter box on 18hp is different than the 20hp as well as smaller valve covers? Thinking must be change due to years. I am getting exactly same compression on both sides of 18hp and that is 80lbs. I heard that is low due to not enough rpms to get it off the decompression by turning with starter? But I'll see how it runs before installing. need advice on wiring if anyone has done such with a Honda.