BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Yamaha Serrow: MOT pass rate by registration year

Which Serrow years pass first time, and which fall short of the model's 84.9% average, from 1,178 DVSA tests.

1996
highest-passing year · 94.0%
1991
lowest-passing year · 78.3%
15.7pp
spread across 10 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: 1996 (94.0% of 84 tests). Lowest: 1991 (78.3% of 115). Years more than two points below the model average: 1991.

75%86%97%1989: 91.1% pass (56 tests)1990: 83.1% pass (89 tests)1991: 78.3% pass (115 tests)1992: 88.2% pass (85 tests)1993: 84.1% pass (107 tests)1994: 83.2% pass (119 tests)1995: 84.4% pass (77 tests)1996: 94.0% pass (84 tests)1999: 83.5% pass (97 tests)2003: 87.7% pass (81 tests)198919942003
RegisteredTestsFirst-time passvs model (84.9%)
1989 56 91.1% +6.2 pp
1990 89 83.1% -1.8 pp
1991 115 78.3% -6.6 pp
1992 85 88.2% +3.3 pp
1993 107 84.1% -0.8 pp
1994 119 83.2% -1.7 pp
1995 77 84.4% -0.5 pp
1996 84 94.0% +9.1 pp
1999 97 83.5% -1.4 pp
2003 81 87.7% +2.8 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 · 2006–2024
74%84%94%2006: 85.3% pass (75 tests)2007: 85.7% pass (70 tests)2008: 84.1% pass (82 tests)2009: 83.6% pass (67 tests)2010: 83.1% pass (71 tests)2011: 80.9% pass (68 tests)2012: 87.1% pass (70 tests)2013: 79.5% pass (73 tests)2014: 78.3% pass (69 tests)2015: 90.0% pass (70 tests)2016: 87.3% pass (71 tests)2017: 87.5% pass (56 tests)2018: 81.4% pass (43 tests)2019: 90.7% pass (43 tests)2020: 86.5% pass (37 tests)2021: 85.1% pass (47 tests)2022: 84.1% pass (44 tests)2023: 88.9% pass (45 tests)2024: 77.5% pass (40 tests)20062024

Questions

Which Serrow years have the lowest MOT pass rate?
1991 registered examples pass first time less often than the Yamaha Serrow overall (84.9%); the 1991 cohort is lowest at 78.3% from 115 tests.
Which Serrow year has the highest MOT pass rate?
1996, at 94.0% of 84 first tests (2005–2025). Years more than two points above the model average: 1989, 1992, 1996, 2003.
How much does the Serrow pass rate vary by year?
15.7 percentage points between the highest (1996, 94.0%) and lowest (1991, 78.3%) 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 Serrow reliability, failures and mileage · ranked #2516 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6