1977 Yamaha Rd400 — MOT History by Age

How cars manufactured in 1977 perform at MOT as they age

49 years

Current Age

91.2%

Latest Pass Rate

344

Total Tests (All Years)

17,398 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Insufficient data for same-age comparison.

How This Car Ages

Pass rate progression for the 1977 Yamaha Rd400 as it ages.

33 yrs84.4%

→ ↑6.5%

34 yrs90.9%

→ ↓9.9%

35 yrs81.0%

→ ↑16.3%

36 yrs97.3%

→ ↓12.2%

37 yrs85.1%

→ ↓4.1%

38 yrs81.0%

→ ↑6.0%

39 yrs87.0%

→ ↑4.2%

40 yrs91.2%

📊 View as table

Age	Pass Rate	Tests
33 yrs	84.4%	32
34 yrs	90.9%	33
35 yrs	81.0%	42
36 yrs	97.3%	37
37 yrs	85.1%	47
38 yrs	81.0%	42
39 yrs	87.0%	54
40 yrs	91.2%	57

Pass Rate Trend

How the 1977 Yamaha Rd400 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2017 (40 yrs)	91.2%	57
2016 (39 yrs)	87%	54
2015 (38 yrs)	81%	42
2014 (37 yrs)	85.1%	47
2013 (36 yrs)	97.3%	37
2012 (35 yrs)	81%	42
2011 (34 yrs)	90.9%	33
2010 (33 yrs)	84.4%	32

Year-by-Year MOT Results

2010

84.4%

Age (yrs) 33Tests 32Avg Mileage 18,875Top Failure Motorcycle brakes — 9.4%

2011

90.9%

Age (yrs) 34Tests 33Avg Mileage 19,418Top Failure Motorcycle driving controls — 3.0%

2012

81.0%

Age (yrs) 35Tests 42Avg Mileage 17,577Top Failure Motorcycle lighting and signalling — 9.5%

2013

97.3%

Age (yrs) 36Tests 37Avg Mileage 15,591Top Failure Motorcycle brakes — 2.7%

2014

85.1%

Age (yrs) 37Tests 47Avg Mileage 18,604Top Failure Motorcycle lighting and signalling — 27.7%

2015

81.0%

Age (yrs) 38Tests 42Avg Mileage 17,956Top Failure Motorcycle steering and suspension — 14.3%

2016

87.0%

Age (yrs) 39Tests 54Avg Mileage 17,946Top Failure Motorcycle brakes — 13.0%

2017

91.2%

Age (yrs) 40Tests 57Avg Mileage 17,398Top Failure Motorcycle brakes — 5.3%

MOT results for 1977 Yamaha Rd400 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2010	33	84.4%	32	18,875	Motorcycle brakes — 9.4%
2011	34	90.9%	33	19,418	Motorcycle driving controls — 3.0%
2012	35	81.0%	42	17,577	Motorcycle lighting and signalling — 9.5%
2013	36	97.3%	37	15,591	Motorcycle brakes — 2.7%
2014	37	85.1%	47	18,604	Motorcycle lighting and signalling — 27.7%
2015	38	81.0%	42	17,956	Motorcycle steering and suspension — 14.3%
2016	39	87.0%	54	17,946	Motorcycle brakes — 13.0%
2017	40	91.2%	57	17,398	Motorcycle brakes — 5.3%

Common MOT Failures

Top failure categories across all test years for 1977 Yamaha Rd400, with age trends.

Motorcycle lighting and signalling

9.4%

— Consistent

Motorcycle brakes

7.8%

↓ Decreases with age

Motorcycle body and structure

6.5%

— Consistent

Motorcycle steering and suspension

6.3%

↓ Decreases with age

Motorcycle tyres and wheels

3.4%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Motorcycle steering and suspension	6.3% (33 yrs)	1.8% (40 yrs)	-4.5%	🟢 ↓
Motorcycle brakes	9.4% (33 yrs)	5.3% (40 yrs)	-4.1%	🟢 ↓
Motorcycle lighting and signalling	6.3% (33 yrs)	3.5% (40 yrs)	-2.8%	🟢 ↓
Motorcycle body and structure	3.1% (33 yrs)	3.5% (40 yrs)	+0.4%	⚪ —

Other Manufacture Years

1976 1977 1978 1979 1980

← Back to Yamaha Rd400 overview

Looking for the best year to buy? See the full comparison on the Yamaha Rd400 page →

About This Data

This page shows how Yamaha Rd400 cars manufactured in 1977 perform at MOT as they age. Data spans from 2010 to 2017, covering 344 tests. Pass rates naturally decline with age as components wear.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.