1978 Yamaha Xs650 — MOT History by Age

How cars manufactured in 1978 perform at MOT as they age

48 years

Current Age

74.2%

Latest Pass Rate

423

Total Tests (All Years)

18,496 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 1978 Yamaha Xs650 as it ages.

31 yrs88.1%

→ ↓7.3%

32 yrs80.8%

→ ↓0.8%

33 yrs80.0%

→ ↑11.9%

34 yrs91.9%

→ ↓0.6%

35 yrs91.3%

→ ↓1.3%

36 yrs90.0%

→ ↓5.0%

37 yrs85.0%

→ ↓3.2%

38 yrs81.8%

→ ↓1.3%

39 yrs80.5%

→ ↓6.3%

40 yrs74.2%

📊 View as table

Age	Pass Rate	Tests
31 yrs	88.1%	42
32 yrs	80.8%	52
33 yrs	80.0%	50
34 yrs	91.9%	37
35 yrs	91.3%	46
36 yrs	90.0%	40
37 yrs	85.0%	40
38 yrs	81.8%	44
39 yrs	80.5%	41
40 yrs	74.2%	31

Pass Rate Trend

How the 1978 Yamaha Xs650 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2018 (40 yrs)	74.2%	31
2017 (39 yrs)	80.5%	41
2016 (38 yrs)	81.8%	44
2015 (37 yrs)	85%	40
2014 (36 yrs)	90%	40
2013 (35 yrs)	91.3%	46
2012 (34 yrs)	91.9%	37
2011 (33 yrs)	80%	50
2010 (32 yrs)	80.8%	52
2009 (31 yrs)	88.1%	42

Year-by-Year MOT Results

2009

88.1%

Age (yrs) 31Tests 42Avg Mileage 22,948Top Failure Motorcycle lighting and signalling — 7.1%

2010

80.8%

Age (yrs) 32Tests 52Avg Mileage 22,208Top Failure Motorcycle lighting and signalling — 9.6%

2011

80.0%

Age (yrs) 33Tests 50Avg Mileage 17,812Top Failure Motorcycle lighting and signalling — 10.0%

2012

91.9%

Age (yrs) 34Tests 37Avg Mileage 21,293Top Failure Motorcycle lighting and signalling — 8.1%

2013

91.3%

Age (yrs) 35Tests 46Avg Mileage 18,740Top Failure Motorcycle lighting and signalling — 6.5%

2014

90.0%

Age (yrs) 36Tests 40Avg Mileage 23,418Top Failure Motorcycle steering and suspension — 12.5%

2015

85.0%

Age (yrs) 37Tests 40Avg Mileage 20,576Top Failure Motorcycle lighting and signalling — 15.0%

2016

81.8%

Age (yrs) 38Tests 44Avg Mileage 20,142Top Failure Motorcycle lighting and signalling — 22.7%

2017

80.5%

Age (yrs) 39Tests 41Avg Mileage 18,237Top Failure Motorcycle lighting and signalling — 14.6%

2018

74.2%

Age (yrs) 40Tests 31Avg Mileage 18,496Top Failure Motorcycle suspension — 12.9%

MOT results for 1978 Yamaha Xs650 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	31	88.1%	42	22,948	Motorcycle lighting and signalling — 7.1%
2010	32	80.8%	52	22,208	Motorcycle lighting and signalling — 9.6%
2011	33	80.0%	50	17,812	Motorcycle lighting and signalling — 10.0%
2012	34	91.9%	37	21,293	Motorcycle lighting and signalling — 8.1%
2013	35	91.3%	46	18,740	Motorcycle lighting and signalling — 6.5%
2014	36	90.0%	40	23,418	Motorcycle steering and suspension — 12.5%
2015	37	85.0%	40	20,576	Motorcycle lighting and signalling — 15.0%
2016	38	81.8%	44	20,142	Motorcycle lighting and signalling — 22.7%
2017	39	80.5%	41	18,237	Motorcycle lighting and signalling — 14.6%
2018	40	74.2%	31	18,496	Motorcycle suspension — 12.9%

Common MOT Failures

Top failure categories across all test years for 1978 Yamaha Xs650, with age trends.

Motorcycle suspension

12.9%

— Consistent

Motorcycle lighting and signalling

11.0%

— Consistent

Motorcycle steering and suspension

7.2%

↑ Increases with age

Motorcycle reg plates and vin

7.1%

↑ Increases with age

Motorcycle brakes

6.0%

↑ Increases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Motorcycle brakes	2.4% (31 yrs)	9.7% (40 yrs)	+7.3%	🔴 ↑
Motorcycle steering and suspension	4.8% (31 yrs)	9.7% (40 yrs)	+4.9%	🔴 ↑
Motorcycle tyres and wheels	4.8% (31 yrs)	6.5% (40 yrs)	+1.7%	⚪ —
Motorcycle lighting and signalling	7.1% (31 yrs)	6.5% (40 yrs)	-0.6%	⚪ —

Other Manufacture Years

1975 1977 1978 1979 1980 1981 1982

← Back to Yamaha Xs650 overview

Looking for the best year to buy? See the full comparison on the Yamaha Xs650 page →

About This Data

This page shows how Yamaha Xs650 cars manufactured in 1978 perform at MOT as they age. Data spans from 2009 to 2018, covering 423 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.