Motor arrived in a timely manner with slight damage (Bent heat shield and broken spark plug). Took some work but was able to remove remainging piece of spark plug from plug wire. Straightened heat shield in vise so the hood would bolt back on properly. Everything else seemed to hook up fine. Engine started up first try. Mowed the law with my tractor for the first time in 4 weeks. Challenges: Exhaust manifold is poorly designed. Nearly impossible to get an allen wrench behind exhaust pipe to install. Needs to be angled about 20 degrees further forward or extend out further from the engine before it turns down. Exhaust pipe rubs against the provided heat shield. I'll need to modify that. All the connections seem correct. Although my tractor wire connection had two wires the supplied engine has three. Stator wire not connected. We'll see if its charging or not in a few mows. Battery seems fine during first 45 minutes. Recommended changes to the instruction kit: Add oil capacity for engine so customer doesn't have to go find it online. Provide a better image of throttle connection. Provide a link to tractor wiring diagrams so customer can verify connections for the kits. Overall I'd do it again. Saved me from buying a new tractor.