Kawasaki Z400-j3 vs Kawasaki Zx-6r: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Kawasaki Z400-j3
77%
MOT pass rate · 382 vehicles
Kawasaki Zx-6r
82%
MOT pass rate · 18,602 vehicles
Verdict: On MOT pass rate the Kawasaki Z400-j3 (77%) and Kawasaki Zx-6r (82%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Kawasaki Z400-j3 | Kawasaki Zx-6r |
|---|---|---|
| MOT pass rate | 77% | 82% ✓ |
| MOT failure rate | 23% | 18% ✓ |
| Faults & advisories per test | 0.3 ✓ | 0.9 |
| Dangerous-fault share | 0% ✓ | 1% |
| Average mileage | 28,163 mi | 28,430 mi |
| Sample size (vehicles) | 382 | 18,602 |
Most common faults
Kawasaki Z400-j3
- Rear Drive chain worn but not considered excessive (6.2.1e)
- REAR SUSPENSION IS STIFF IN OPERATION.
- Centre Rear reflector on motorcycle missing (1.4.1)
- Drive chain slightly loose (6.2.1d)
- Front Position lamp adversely affected by the operation of another lamp (4.2.3 (b))
- Fuel system component leaking (6.1.3 (b) (i))
Kawasaki Zx-6r
- Rear Tyre worn close to the legal limit (4.1.3(ii))
- Front Tyre worn close to the legal limit (4.1.3(ii))
- Exhaust noisy (7.1.2)
- Drive chain slightly loose (6.2.1d)
- Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d)
- Exhaust noisy (8.1.1 (a))
Reliability FAQ
On MOT pass rate the Kawasaki Z400-j3 (77%) and Kawasaki Zx-6r (82%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Kawasaki Z400-j3 report Full Kawasaki Zx-6r report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.