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

Data as of: DVSA MOT results to 2025

Yamaha TDR: MOT pass rate by registration year

Which TDR years pass first time, and which fall short of the model's 82.8% average, from 710 DVSA tests.

1988
highest-passing year · 87.6%
1990
lowest-passing year · 80.2%
7.4pp
spread across 4 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: 1988 (87.6% of 161 tests). Lowest: 1990 (80.2% of 91). Years more than two points below the model average: 1990.

79%84%89%1988: 87.6% pass (161 tests)1989: 85.0% pass (153 tests)1990: 80.2% pass (91 tests)1991: 87.1% pass (70 tests)198819901991
RegisteredTestsFirst-time passvs model (82.8%)
1988 161 87.6% +4.8 pp
1989 153 85.0% +2.2 pp
1990 91 80.2% -2.6 pp
1991 70 87.1% +4.3 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 · 2006–2022
53%77%100%2006: 69.0% pass (42 tests)2007: 75.7% pass (37 tests)2008: 61.1% pass (36 tests)2009: 85.7% pass (42 tests)2010: 89.7% pass (39 tests)2011: 81.4% pass (43 tests)2012: 86.7% pass (45 tests)2013: 76.2% pass (42 tests)2014: 85.4% pass (41 tests)2015: 88.2% pass (51 tests)2016: 86.5% pass (37 tests)2017: 77.1% pass (35 tests)2021: 90.0% pass (30 tests)2022: 93.5% pass (31 tests)20062022

Questions

Which TDR years have the lowest MOT pass rate?
1990 registered examples pass first time less often than the Yamaha TDR overall (82.8%); the 1990 cohort is lowest at 80.2% from 91 tests.
Which TDR year has the highest MOT pass rate?
1988, at 87.6% of 161 first tests (2005–2025). Years more than two points above the model average: 1988, 1989, 1991.
How much does the TDR pass rate vary by year?
7.4 percentage points between the highest (1988, 87.6%) and lowest (1990, 80.2%) 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 TDR reliability, failures and mileage · ranked #3007 of 5428 models· other Yamaha models: YZF-R1, YZF-R6, FZS600, YBR 125, XJR1300, FZ6