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

Data as of: DVSA MOT results to 2025

Yamaha CS: MOT pass rate by registration year

Which CS years pass first time, and which fall short of the model's 68.4% average, from 594 DVSA tests.

2014
highest-passing year · 69.0%
2015
lowest-passing year · 60.4%
8.6pp
spread across 3 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: 2014 (69.0% of 242 tests). Lowest: 2015 (60.4% of 91). Years more than two points below the model average: 2013, 2015.

59%65%71%2013: 64.0% pass (86 tests)2014: 69.0% pass (242 tests)2015: 60.4% pass (91 tests)201320142015
RegisteredTestsFirst-time passvs model (68.4%)
2013 86 64.0% -4.4 pp
2014 242 69.0% +0.6 pp
2015 91 60.4% -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 · 2017–2025
54%67%80%2017: 70.0% pass (80 tests)2018: 68.5% pass (73 tests)2019: 74.4% pass (78 tests)2020: 69.1% pass (68 tests)2021: 61.6% pass (86 tests)2022: 58.1% pass (62 tests)2023: 70.0% pass (60 tests)2024: 75.7% pass (37 tests)2025: 67.6% pass (34 tests)20172025

Questions

Which CS years have the lowest MOT pass rate?
2013, 2015 registered examples pass first time less often than the Yamaha CS overall (68.4%); the 2015 cohort is lowest at 60.4% from 91 tests.
Which CS year has the highest MOT pass rate?
2014, at 69.0% of 242 first tests (2005–2025).
How much does the CS pass rate vary by year?
8.6 percentage points between the highest (2014, 69.0%) and lowest (2015, 60.4%) 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 CS reliability, failures and mileage · ranked #4831 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6