2021 KTM 790 Adventure R Engine Problems

“The valve train of my bike failed and left me stranded in the woods. There were no signs or warnings beforehand. After further research online, I found that this issue has been happening quite a bit. Luckily it happened to me while my bike was parked. The issue is the valve train is wearing out prematurely and causing the bikes to run poorly or not run at all. My bike has 13,000 miles on it and other bikes have had more or less miles when this issue occurred. …”

“When I start the bike, it sounds like the engine is only running on one cylinder and misfiring. It runs 'rough' like this for about 30 -60 seconds and the revs are sitting between 1000-1300 instead of the normal 1300-1500rpm range. You can smell fuel while this is happening. It then 'pops' and the engine runs fine after that. I live in the Netherlands, but wanted to register the issue here as well for investigation.”

“I have checked the cam shafts condition at only 3900 miles since there are a lot of people with the same motorcycle mentioning this issue and there is an unsuspected wear starting to happen. Motorcycle always ran on recommended Motorex oil and air filter was maintained as it should be.”

“When engin is cold for more then 8 hours. Engin will start only on 1 cylinder (right), for +/- 1 minute (1000 +/- rpm), after, you will heard internal explosion, and left cylinder will start (1600 +/- rpm) . and dropping at 1400 for normal idle. With an strong gazoline smells after start-up, after 2 3 minutes smeel is gone Please note that I live in Canada Quebec”

“The motorcycle is having a cold start issue. When starting after 24hours, the motorcycle will not start right away or will only start on one of two cylinders. After roughly 60 seconds the second cylinder starts up.”