BIKERELIABILITY Reg check
League table/ YAMAHA/ FS1/By year
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Yamaha FS1: MOT pass rate by registration year

Which FS1 years pass first time, and which fall short of the model's 82.3% average, from 2,677 DVSA tests.

1974
highest-passing year · 91.6%
1990
lowest-passing year · 70.4%
21.2pp
spread across 15 years

Pass rate by registration year

first-time pass rate · cohorts with 50 or more tests · registration year from first use date

Highest pass rate: 1974 (91.6% of 95 tests). Lowest: 1990 (70.4% of 142). Years more than two points below the model average: 1987, 1988, 1989, 1990, 1991.

66%81%96%1971: 87.3% pass (63 tests)1973: 85.4% pass (96 tests)1974: 91.6% pass (95 tests)1975: 87.5% pass (280 tests)1976: 88.5% pass (243 tests)1977: 87.4% pass (231 tests)1978: 89.5% pass (57 tests)1979: 86.3% pass (80 tests)1980: 82.9% pass (76 tests)1987: 79.1% pass (326 tests)1988: 77.2% pass (250 tests)1989: 72.5% pass (244 tests)1990: 70.4% pass (142 tests)1991: 80.0% pass (95 tests)2007: 90.3% pass (62 tests)197119792007
RegisteredTestsFirst-time passvs model (82.3%)
1971 63 87.3% +5.0 pp
1973 96 85.4% +3.1 pp
1974 95 91.6% +9.3 pp
1975 280 87.5% +5.2 pp
1976 243 88.5% +6.2 pp
1977 231 87.4% +5.1 pp
1978 57 89.5% +7.2 pp
1979 80 86.3% +4.0 pp
1980 76 82.9% +0.6 pp
1987 326 79.1% -3.2 pp
1988 250 77.2% -5.1 pp
1989 244 72.5% -9.8 pp
1990 142 70.4% -11.9 pp
1991 95 80.0% -2.3 pp
2007 62 90.3% +8.0 pp

Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years. A first-time MOT pass is a roadworthiness check, not a full mechanical inspection.

Pass rate over time

first-time pass rate by test year · 2005–2025
64%82%100%2005: 72.1% pass (43 tests)2006: 69.9% pass (173 tests)2007: 83.3% pass (150 tests)2008: 75.6% pass (164 tests)2009: 79.0% pass (167 tests)2010: 72.5% pass (182 tests)2011: 77.0% pass (183 tests)2012: 86.0% pass (179 tests)2013: 84.0% pass (187 tests)2014: 86.8% pass (174 tests)2015: 88.0% pass (191 tests)2016: 85.2% pass (182 tests)2017: 88.7% pass (186 tests)2018: 84.1% pass (113 tests)2019: 93.2% pass (74 tests)2020: 79.5% pass (73 tests)2021: 85.9% pass (64 tests)2022: 82.8% pass (64 tests)2023: 91.3% pass (46 tests)2024: 86.0% pass (43 tests)2025: 94.9% pass (39 tests)20052025

Questions

Which FS1 years have the lowest MOT pass rate?
1987, 1988, 1989, 1990, 1991 registered examples pass first time less often than the Yamaha FS1 overall (82.3%); the 1990 cohort is lowest at 70.4% from 142 tests.
Which FS1 year has the highest MOT pass rate?
1974, at 91.6% of 95 first tests (2005–2025). Years more than two points above the model average: 1971, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 2007.
How much does the FS1 pass rate vary by year?
21.2 percentage points between the highest (1974, 91.6%) and lowest (1990, 70.4%) cohorts with at least 50 tests. Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.

Full report: Yamaha FS1 reliability, failures and mileage · ranked #3130 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6