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2021 Kawasaki Ninja 400Problems, recalls & complaints

NHTSA has logged 1 owner complaint about the 2021 Kawasaki Ninja 400, most often about the power train. It is covered by 1 safety recall, and for recall 20V-774 the manufacturer reports only 91% of affected cars repaired.

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CarFlaw IndexNot enough dataHigher is better (0–100)
Safety recalls1Lowest repair rate 91%Owner complaints11 with a crash, fire or injuryTop problem1Power train

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through November 27, 2024. Updated daily.

Complaints by system

Where the 2021 Kawasaki Ninja 400 has problems

1 complaint grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Power train11

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

1 recall

2021 Kawasaki Ninja 400 recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

91%repaired · 2022 Q3

Engine

Do not drive

Recall 20V-774 · Dec 11, 2020 · 1,770 vehicles · 1,605 repaired

Risk. A damaged camshaft chain tensioner can cause the engine to stall, increasing the risk of a crash.

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Kawasaki.

Best & worst years

2021 vs. every other Ninja 400 year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Ninja 400 median. How we score

'21'22
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
In owners' words

What Ninja 400 owners report

Recent power train complaints filed with NHTSA, shortened. Personal details are removed.

This issue has been documented on hundreds of KAWASAKI NINJA400 Motorcycles ranging from 2019 to 2023. The clutch will malfunction and slip with miles as low as 200. I personally have a ninja 400 from the dealership with 7000 miles on it and the clutch is indeed slipping abnormally and this has…
Complaint 11627639 · Nov 27, 2024

Own a 2021 Ninja 400?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.