This page covers 4 recalls and 18 owner complaints for the 2024 Kawasaki Ninja Zx-6r.
For the 2024 Kawasaki Ninja ZX-6R, the bulk of owner complaints center on the engine and related cooling components. The most commonly described symptom is an abnormal engine noise, with several owners reporting that the sound traced back to crankshaft bearing failure. A smaller number of owners describe backfiring while riding. Two complaints fall under the powertrain category, though the described symptoms overlap with the engine issues already noted. A handful of owners report dissatisfaction with dealer repair attempts, saying the problem persisted after the motorcycle was serviced. The crankshaft bearing failure pattern is the most specific and recurring mechanical symptom owners describe across this complaint set.
18
Total Complaints
1
Crash-Related
By System
Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
The 2024 Kawasaki Ninja ZX-6R has 4 recalls, all centered on the same engine defect: a crankshaft bushing that can seize and cut engine power without warning while riding, raising the risk of a crash.
The underlying problem is a crankshaft bushing that can be damaged by over-tightened crankshaft bolts, and once that bushing fails, the engine stalls mid-ride with no gradual warning. On a motorcycle at speed, a sudden loss of drive power removes the rider's ability to accelerate out of a hazard and can catch trailing traffic off guard. Two of these recalls exist because an earlier round of dealer repairs did not fully resolve the issue, meaning some bikes that were already brought in for service may still carry the defect and require a second repair.
At a glance
What can fail
During production, crankshaft bolts may have been over-tightened, damaging the crankshaft bushing. This can cause the engine to stall while riding.
What the fix does
A dealer will inspect and correctly tighten the crankshaft bolts, and repair or replace the bushing, parts, or engine as needed.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A metal crankshaft bushing can seize during operation, causing the engine to lose power.
What the fix does
Dealers will re-tighten the metal crankshaft bushing at no cost to restore proper engine function.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A metal bushing in the crankshaft may seize, causing the engine to lose power while riding.
What the fix does
Inspect the bushing; if damaged, replace it and tighten the crankshaft bolts, or repair/replace the engine. If undamaged, re-tighten the crankshaft bolts.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Crankshaft bolts may have been over-tightened during manufacturing, damaging the crankshaft bushing. This could cause the engine to stall while riding.
What the fix does
A dealer will inspect the crankshaft bolts, tighten them to the correct specification, and repair or replace the bushing, parts, or engine as needed.
Summarized — see the official notice for exact wording, dates, and contacts.
