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  1. Buzzing at c.a. 6800 rpm

    Ninja 400 Complaints, Issues And Problems
    Hi All, I have recently noticed that my Ninja 400 has developed a buzzing sound at 6800rpm. The sound comes on at these revs and diseappers when the revs rise or fall below this value. It appears on both acceleration and deceleration when pasing 6800 rpm. Appears to be engine vibration and not...
  2. Bay Area Ca

    Kawasaki Ninja 400 Owners Registry & Check In Area
    New rider looking for someone ride with give me tips to ride better and how maintain bike properly.and just get out there
  3. My BikešŸ„“

    My BikešŸ„“

  4. First Bike! - Central MA

    New Member Introduction
    Hi everyone! I'm a first time rider and picked up my '18 Ninja 400 last month. So far I've done about 100 miles in the few times I've been out and I'm absolutely loving the bike šŸ˜„ I'm currently in the process of breaking it in as I'm effectively the first owner, the actual first owner only put...
  5. My Vinyl Wrapped Ninja 400

    Ninja 400 General Discussion Forum
    Had some fun with my Ninja 400 this winter. My wife let me do this in our living room!

    Engine and Technical Discussion
    Hi all, I am newer to the chain and sprocket stuff and i know the Oem size is 14/41 with a stock gear ration of 2.93. I have done a full exhaust, air filter and tune to my bike. I was thinking of upping my hearing to a 15/45 with a gear ratio of 3.00. Does anyone have any recommendations about...
  7. 2018 Ninja 400

    2018 Ninja 400