RoadVitals

2024 Kawasaki Ninja Zx-6R Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
18
Latest Mar 5, 2026
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
3
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
1

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2024 Kawasaki Ninja Zx-6R, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Engine1684.2%
  • Powertrain (other)210.5%
  • Brakes15.3%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

16
reports

From owner reports, verbatim

See attached document for complaint. The undersigned is legal counsel representing XXXXXXXXXXX in the above-mentioned matter. Please be advised that XXXXXXXXXX purchased a new Kawasaki 2024 motorcycle model ZX636JRFBN on May 9, 2024 with total purchase price of $13,981.92. On or about April of 2025, XXXXXXXXXXX received a recall notice with follow up notice in June of 2025 NHTSA Recall No. 25V376 “Crankshaft Bearing Seizure” causing the engine to potentially “lose engine power unexpectedly due to a seizure of the #5 crankshaft bearing” that may lead to an increased risk of a crash. Given the nature of the recall, the notice is marked with a “DO NOT RIDE” advisory until the repair is made and that the customer is to contact a dealer for such repair. Sometime on or about late August of 2025, the motorcycle was inspected at a Kawasaki dealership in an effort to address the recall. This was the earliest that the dealership could address the recall nearly three months after getting the “DO NOT RIDE” notice. The mechanic who examined the motorcycle indicated that it did not appear that the bike had the defect. In November of 2025, an additional recall notice “Crankshaft Bushing Seizure” was issued under Recall # 25V798 since the notice acknowledges that a prior repair on the vehicle may not have addressed the defect. A second letter was issued in November of 2025 under the same recall notice indicating the parts needed for the repair are not available. Finally, another notice was issued under the same recall, 25V798. Again a “DO NOT RIDE” warning is issued on this notice. The letter advises that the “method used to torque the crankcase bolts will be different than the one used in the prior recall “and that the recall applies to “vehicles already remedied under recall campaign MC25-08 (NHSTA Recall #25V376). Once again there are instructions to contact a dealer for repairs. It is presumed that parts are now available to attempt another repair. Due to the critical safety issue relating to the recalls, the unreasonabl

NHTSA ID 11722245 · filed Mar 5, 2026

The contact owns a 2024 Kawasaki Ninja ZX-6R. The contact received notifications of NHTSA Campaign Numbers: 25V376000 (ENGINE AND ENGINE COOLING) and 25V798000 (ENGINE AND ENGINE COOLING). The contact stated that while driving at an undisclosed speed, the motorcycle backfired. The local Oasis Outdoors - Powersports dealer was contacted and informed the contact that they did not repair Kawasaki motorcycles. The contact stated that the dealer was a Kawasaki dealer. The contact stated that the nearest Kawasaki dealer was 100 miles away. The motorcycle was not repaired. The manufacturer was not made aware of the issue. The failure mileage was unknown.

NHTSA ID 11702943 · filed Dec 4, 2025
All 16 reports naming engine

Powertrain (other)

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.

2
reports

From owner reports, verbatim

Recall was issued for crankshaft bearing failure and recall was performed and completed. Kawasaki performed the inspection and repair, however kawasaki had failed to adequately fix the issue causing prolonged headaches and paying for something that is unsafe to opperate. All kawasaki is telling people is dont ride but not providing an adequate fix to make the bike safe again or theyre also refusing to buy the bikes back.

NHTSA ID 11700482 · filed Nov 20, 2025

Vehicle: 2024 Kawasaki Ninja ZX-6R Recall Number: 25V376 VIN: [XXX] Date Received “Do Not Ride” Notice: 6/20/2025 Subject: Recall 25V376 – No Remedy Provided / Loss of Use / Warranty Concerns Dear NHTSA, I am submitting this complaint regarding NHTSA Recall No. 25V376, which applies to my 2024 Kawasaki Ninja ZX-6R due to a potentially catastrophic crankshaft bushing failure. On 6/20/2025, I received a formal “Do Not Ride” notice from Kawasaki Motors Corp. advising me to stop using my motorcycle immediately due to the risk of engine seizure. Since that day, my motorcycle has been parked and unusable — and Kawasaki has not provided any timeline or available remedy for this recall. This means I am now without use of a brand-new motorcycle that I paid for in full, during the entire prime riding season in my home state of Michigan. Even worse, Kawasaki has indicated that the required repair will involve a 20+ hour engine teardown rather than a full replacement. This significantly affects the value, mechanical integrity, and future reliability of my vehicle. I am reporting this to NHTSA because: 1.Kawasaki has not yet provided a fix, nor a timeline, more than 3 weeks after the problem was known. 2.There is no loaner program, compensation, or customer support plan in place. 3.Owners are losing months of use, insurance payments are still required, and the bike cannot be sold or traded. 4.Dealers were issued stop-sale instructions around June 4, 2025, but many continued sales through that time. 5.I fear this recall will result in severe devaluation of affected vehicles, even after repair. I’m asking NHTSA to please hold Kawasaki accountable for timely remedies, appropriate compensation, and warranty protection for affected owners like myself. If manufacturers are allowed to sideline vehicles with indefinite no-ride directives and offer no restitution, that leaves consumers completely unprotected. Thank you for your time [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)

NHTSA ID 11669504 · filed Jun 26, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

1
report

From owner reports, verbatim

Unknown. Fatal motorcycle accident. Based on the police report, one witness said he blew a tire and all witnesses state that he and the bike went airborn. The motorcycle was part of the group of ZX6R's recalled by Kawasaki though its since been salvaged. The officer at the scene confirmed the bikes tire was intact so there's some suspicion that something else happened such as other parts coming off of the bike or the wheel smoking such as if it had locked up.

NHTSA ID 11689033 · filed Sep 22, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .