Riders have reported issues such as: The m8 was designed to replace the aging twin cam engine, promising improved performance, better heat management, and enhanced reliability. Even when warmed up, the rpm should be stable, but it's not.
M8 problems Page 90 Harley Davidson Forums
Heat from the exhaust system can become uncomfortable, especially riding in slow traffic.
As the bike moves, air passes across the cylinder fins and reduces the engine’s heat to keep it cool.
When i start it cold, the rpm stays at around. The increased heat levels can be a problem, especially in hot weather. I have noticed the bike runs cooler at lower speeds than at prolonged highway speeds so i think the cooling system is undersized for the heat load when relying on air flow. This is at least 50f cooler.
It varies between something around 950/1000 up to about 1500. One of the most common issues riders are experiencing with their m8 engine is excessive heat. The most common milwaukee 8 problems include issues with the crankshaft configuration, harmonic balancers, rattling engine noise, excessive engine vibration, poorly. Did a stage i and it got better but was still hot on the right side.
This issue really comes into focus for those with shorter legs.
Regarding the stop light situation, are you sure it's not just your eitms (engine idle temperature management system) kicking in? The fan keeps the heat low when. My 2018 road king typically turns in temperatures on the m8 107 of about 210f or sometimes up to 220f, as measured by the hd digital oil dipstick.
