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Kawasaki Z550 G4 (1991)

323 real MOT outcomes analysed • 4.4% first-time pass rate

1991 Kawasaki Z550 G4

CarHunch analysed 323 real MOT records for the 1991 Kawasaki Z550 G4. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Below average reliability 75.6% below UK average
4.4%
pass MOT first time
UK average: ~80%
31,716
typical mileage
25,949–37,806 middle half
0.9%
ever had a dangerous defect
recorded at any MOT
0.07
avg MOT failures per car
over 1.2 tests on record

What to check before buying a 1991 Kawasaki Z550 G4

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Kawasaki Z550 G4

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (99%) 320 3.7% 0.07
Other (1%) 3 83.3% 0.67

Mileage Distribution

Most 1991 Kawasaki Z550 G4 vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

25,949
low mileage
31,716
typical
37,806
high mileage

Half of all 1991 Kawasaki Z550 G4 vehicles fall between 25,949 and 37,806 miles.

MOT History Averages

1.2
Avg MOT tests per vehicle
0.07
Avg failures per vehicle
0.1
Avg advisories per vehicle

Most Common MOT Issues — 1991 Kawasaki Z550 G4

Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.

  • 19.7%
    Rear Tyre worn close to the legal limit
  • 19.7%
    Front Tyre worn close to the legal limit
  • 15.2%
    Exhaust is leaking but is not excessively noisey
  • 15.2%
    Rear Roller brake test indicates slight fluctuation of brake effort
  • 13.6%
    Front Brake pad(s) close to minimum limit
  • 13.6%
    Front Roller brake test indicates slight fluctuation of brake effort
  • 13.6%
    Headlamp aim too high
  • 9.1%
    Rear shock absorber has a slightly reduced damping effect

Data covers a 3-year window centred on 1991. Counts include advisories and failures.

Found a specific Kawasaki Z550 G4?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Kawasaki Z550 G4:

1987 1988 1989 1990