I enjoy working on engines when it’s not urgent, and it’s fairly low stakes if things take 5x as long as I plan, or I need more parts than I thought. OTOH, it’s incredibly stressful when my motorcycle throws an engine code that tells me there’s an electrical fault, and I know that I’m going go end up needing to tear it down, go through the wiring loom, and not be able to ride for a few weeks when the weather is finally getting really nice.