Suzuki GSF650 MOT pass rate and common failures
Suzuki GSF650 motorcycles pass the MOT 84.08% of the time, measured across 1,589 tests in the DVSA record. A further 5.79% passed only after a defect was put right at the test station.
What to check before the MOT
Built from this model's own failure record, not general advice.
- Start with not working - it accounts for 25.5% of failed tests on this model.
- Then check has a serious fluid leak and tread depth is below minimum requirements of 1.0mm, the next two most common reasons.
- The most common advisory is noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (7.7% of all tests) - not a failure, but money you will spend sooner or later.
- Average recorded mileage at test is 26,719 miles, which is the number to compare any advert against.
Pass rate by age
A single pass rate hides the most useful thing in this data: how the same model behaves at three years old and at fifteen.
| Age at test | Pass rate | Tests | |
|---|---|---|---|
| 11-15 years | 82.72% | 272 | |
| 16+ years | 84.36% | 1,317 |
Why the Suzuki GSF650 fails
Share of failed tests on this model where the item was recorded. One test can fail on several items, so the column does not add up to 100%.
| # | Item | Of failures | Tests | |
|---|---|---|---|---|
| 1 | Not working | 25.5% | 41 | |
| 2 | Has a serious fluid leak | 19.3% | 31 | |
| 3 | Tread depth is below minimum requirements of 1.0mm | 17.4% | 28 | |
| 4 | Insecure | 12.4% | 20 | |
| 5 | Less than 1.0 mm thick | 12.4% | 20 | |
| 6 | Too low | 12.4% | 20 | |
| 7 | Missing | 11.8% | 19 | |
| 8 | Flashing more than 120 times a minute | 10.6% | 17 | |
| 9 | Does not illuminate by the operation of both brake controls | 9.3% | 15 | |
| 10 | Too high | 8.1% | 13 |
Most common advisories
Not a failure and not a legal requirement to fix - but an advisory that repeats year after year is money the next owner spends.
| # | Item | Of all tests | Tests | |
|---|---|---|---|---|
| 1 | Noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition | 7.7% | 123 | |
| 2 | Tread depth is below minimum requirements of 1.0mm | 7.7% | 122 | |
| 3 | Less than 1.0 mm thick | 4.5% | 72 | |
| 4 | Excessively loose | 3.1% | 49 | |
| 5 | Indicates excessive fluctuation of brake effort | 3.1% | 49 | |
| 6 | Has a serious fluid leak | 2.8% | 44 | |
| 7 | Worn to excess | 1.8% | 29 | |
| 8 | Excessively binding | 1.7% | 27 | |
| 9 | Has a major leak of exhaust gases | 1.6% | 25 | |
| 10 | In such a condition that it is seriously weakened | 1.3% | 21 |
Suzuki GSF650 for sale
No Suzuki GSF650 in stock at the moment - 528 other Suzuki bikes are advertised.
Similar bikes compared
Models of comparable capacity, so the comparison means something.
| Model | Tests | Pass rate | Avg mileage | |
|---|---|---|---|---|
| Honda CB 397-750cc · 397-750cc | 5,400 | 89.76% | 19,444 | |
| Honda NC · 741cc | 5,311 | 89.53% | 22,765 | |
| Suzuki GSF600 · 600cc | 4,890 | 80% | 29,308 | |
| Honda CBR600F · 599cc | 4,710 | 85.56% | 30,651 | |
| Kawasaki ZX-6R · 599-636cc | 4,510 | 81.62% | 26,019 | |
| Suzuki SV650 · 646cc | 3,834 | 80.99% | 27,644 |
Source: DVSA MOT testing data, 2025 · updated Aug 2026 · licence and method