2021 Harley-Davidson RA1250S problems

Filed Sep 23, 2026 · Engine · NJ

My motorcycle suffered a serious engine failure at approximately 12,500 km (7,800 miles) while I was riding. Before the failure, I noticed an unusual ticking/rattling noise coming from the engine, especially when the engine was under load or when the throttle was closed. The failure occurred while riding and caused a sudden loss of engine performance. This happened while I was in traffic and I was extremely close to having an accident because the motorcycle did not respond as expected when I needed power. After the motorcycle was inspected, the failure was found to be related to the camshaft/cam chain tensioning system. The cam chain tensioner had become loose and the resulting failure caused internal engine damage, including damage to components in the valve train. The motorcycle had been properly maintained and serviced, and there was no missed scheduled maintenance that could explain the failure. The mileage was also relatively low for such a serious internal engine failure. What concerns me is that I am now finding other reports describing similar failures on Revolution Max engines, particularly involving the cam chain tensioner and its retaining bolt. If a tensioner can lose its position during normal operation and cause the cam timing to fail, the consequences can be extremely serious. In my case, this was not simply a mechanical failure that left me stranded. It created an actual safety risk while riding and nearly caused an accident. I am sharing this as a separate report because I believe these incidents should be documented individually. If other Pan America owners have experienced similar cam chain tensioner, cam chain, camshaft or valve train failures, especially on 2021–2022 models, please share your mileage, symptoms and the exact components that failed. I hope Harley-Davidson and the relevant authorities will look at these reports collectively rather than treating each failure as an isolated incident.

Filed Sep 23, 2026 · Acceleration, Engine · NY

My motorcycle suffered a serious engine failure at approximately 12,500 km (7,800 miles) while I was riding. Before the failure, I noticed an unusual ticking/rattling noise coming from the engine, especially when the engine was under load or when the throttle was closed. The failure occurred while riding and caused a sudden loss of engine performance. This happened while I was in traffic and I was extremely close to having an accident because the motorcycle did not respond as expected when I needed power. After the motorcycle was inspected, the failure was found to be related to the camshaft/cam chain tensioning system. The cam chain tensioner had become loose and the resulting failure caused internal engine damage, including damage to components in the valve train. The motorcycle had been properly maintained and serviced, and there was no missed scheduled maintenance that could explain the failure. The mileage was also relatively low for such a serious internal engine failure. What concerns me is that I am now finding other reports describing similar failures on Revolution Max engines, particularly involving the cam chain tensioner and its retaining bolt. If a tensioner can lose its position during normal operation and cause the cam timing to fail, the consequences can be extremely serious. In my case, this was not simply a mechanical failure that left me stranded. It created an actual safety risk while riding and nearly caused an accident. I am sharing this as a separate report because I believe these incidents should be documented individually. If other Pan America owners have experienced similar cam chain tensioner, cam chain, camshaft or valve train failures, especially on 2021–2022 models, please share your mileage, symptoms and the exact components that failed. I hope Harley-Davidson and the relevant authorities will look at these reports collectively rather than treating each failure as an isolated incident.

Filed Sep 15, 2026 · Transmission · TX

The cam chain tensioner failed while driving down the road, resulting in reduced power during a pass that almost resulted in an accident. There are no maintenance requirements for this component and there are numerous reports of this failing in motorcycles equipped with the Revolution Max engine. On this engine, the cam chain tensioner is held in place with a bolt that is apparently a torque to spec item with no locking mechanism. During the course of normal operation, the bolt backs out and can have varying degrees of damage. In this case, the forward cylinder cam chain became dislodged from the cams, resulting in a dead cylinder and eventually destroying the intake cam. A cursory check was done approximately 4 weeks prior to the incident, and no excess play was noted at that time. Note that there is no spec that I am aware of for excess play or interval to check it. This is a large enough issue that there are aftermarket companies that sell kits that contain Lock Tite on bolts to remedy this.

Filed Jun 23, 2026 · Electrical, Transmission · UT

The engine stalled when I was exiting the freeway due to the charging system failure. This is the second time the charging system failed. The first failure has been documented on the federal safety agency complaint number 11746092. I paid the Harley Davidson SLC dealership in April 2024 to have the charging system repaired and replaced. Harley Davidson had released a service bulletin acknowledging charging system deficiencies on 2021-2023 Pan America models and subsequently redesigned the entire charging system for the2024 model year. This is a documented pattern and not just an isolated failure. Regarding the repair in April 2024, the dealership replaced the failed stator with the same poorly designed part number instead of upgrading to the redesigned charging system. Now only two years and 9,000 miles later I'm experiencing the same problems as before.

Filed Jun 23, 2026 · Electrical, Transmission · UT

The charging system for the battery failed when I was on an out of state road trip. The voltage of the bike would drop between 11 and 12 volts when slowing down. I slowed down to make a tight turn on a canyon highway when the bike lost power and stalled. The motorcycle continued to stall several more times while in motion on the highway and I had a difficult time restarting the motorcycle on the side of the highway each time. I ended up purchasing a new battery thinking it would solve the problem. It worked for another few hundred miles until the new battery was also depleted and I had the same issue on the side of the highway outside Sedona. I had to rent a Uhaul for $551 to be able to return home safely. I took the motorcycle to the Harley Davidson dealership in Salt Lake City and paid approx. $1,248 to have the Stator and charging system replaced. Harley Davidson had released a service bulletin acknowledging charging system deficiencies on 2021-2023 Pan America models and subsequently redesigned the entire charging system for the 2024 model year. This is a documented pattern and not just an isolated failure. Regarding the repair in April 2024, the dealership replaced the failed stator with the same poorly designed part number instead of upgrading to the redesigned charging system.

Filed Jun 17, 2026 · Electrical · FL

2021 H-D Pan America charging system (stator and/or rotor) failing per dealer testing. Not covered by warranty or extended warranty. Motorcycle is currently at the dealer awaiting parts. Was advised not to ride it because it could run erratic, shut off unexpectedly (very dangerous), fail to start, etc. Possible the magnets can separate from the electrical rotor and cause catastrophic damage requiring engine replacement.

Filed May 13, 2026 · Electrical · UT

The ignition kill switch is a known problem all over the internet. When the kill switch is switched the bike continues to run. The more the switch has worn, the longer the delay. I'm afraid at some point it's just not going to kill the engine at all which is a major safety hazard.

Filed May 13, 2026 · Electrical · SC

While going through an intersection at 50 mph the dashboard goes black and resets just like you switched the motor cycle off. This has happened to me three times in last 6 months. Dealer says it’s a bad switch and has since been redesigned and he will sell me one for $406.00, for an extra $100.00 they will install it for me. Plus towing to get my job working motorcycle to the dealer.

Filed May 2, 2026 · Electrical · VA

The Harley pan America has 2 electrical issues causing safety concerns. The right hand control module fails randomly causing the bike to continue running when turning off. The charging system randomly drops voltage causing the motorcycle to go into a limp mode while driving limiting speed to 55 and reduced throttle input which causes safety concerns while driving down the road. Harley Davidson is aware of the issues but will not repair the issues. This is a common problem with most Harley pan americas. Harley has updated the charging system on newer models along with the right hand control module but will not issue a recall to fix the previous model bikes affected by these problems

Filed Apr 29, 2026 · Electrical · MN

The charging system is not working at low rpm causing bike to die at stop signs. Not safe in heavy traffic. The dealer has checked the system and will require an upgrade kit because the parts in the bike now are note available. The kit $2600 plus labor. The extend warranty will not cover this because it’s an upgrade kit. This is a known issue with these bike and refuse to take care of this!