Copyright jalopnik
The problem is, Harley-Davidsons aren't built like that anymore. The soul is still there, but the science has evolved. Modern models use electronic fuel injection, reliable engines like the Evolution, and synthetic oils that flow smoothly even in cold starts. And newer Harleys' Electronic Control Units automatically adjust fuel combination mechanically, meaning they don't need to sit idling for minutes on end or require a choke. This even includes the difficult-to-drive Fat Boy. In fact, excessive idling can backfire. Long warm-ups cause carbon buildup and fuel waste — especially in tightly tuned modern engines. The recommended approach? About 15 to 20 seconds is fine for a fuel-injected Harley. Then ride gently until it reaches full operating temperature. Getting in motion warms it more efficiently than standing still ever could. And the trademark Harley-Davidson vibration is included while you ride. Yet the debate endures. On Reddit's r/Harley, threads stretch for miles between traditionalists and pragmatists. Some swear that letting the bike purr a little keeps it happier in the long run. Others call that folklore, a holdover from carburetor days. The truth probably lies somewhere in between. Modern Harleys may not need to be warmed up, but riders still need that moment. It's not just about oil viscosity or cylinder pressure. It's about a certain connection — that slow, rumbling dialogue between human and machine before the day begins.
