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  1. Norton Motorsports
    We love satisfied customers, and also a good write up. It may be from a few years back, but this was an excellent illustrated write up with meticulous attention to detail. Check out Watcher905's write up on his top end work where he also upgraded to the Norton Cylinder Coolant Seal (Available...
  2. Engine and Technical Discussion
    Hey guys! I have a strange oil leak from the stator cover cap. Didn't drop the ninja or anything. What could be the case here?
  3. Ninja 400 General Discussion Forum
    I noticed this rattling/scraping(?) sound while I was riding earlier, it progresses with the rpms once it passes 6k. Doesn’t really seem like a normal sound. I’m curious if this is the horn or something loose rattling, or part of the engine. Just listen to the video, you may need to wear earbuds...
  4. Ninja 400 Complaints, Issues And Problems
    I noticed this rattling/scraping(?) sound while I was riding earlier, it progresses with the rpms once it passes 6k. Doesn’t really seem like a normal sound. I’m curious if this is the horn or something loose rattling, or part of the engine. Just listen to the video, you may need to wear earbuds...
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