Suzuki DL 650 AL2 MOT pass rate and common failures

Suzuki DL 650 AL2 motorcycles pass the MOT 89.43% of the time, measured across 350 tests in the DVSA record. A further 2.86% passed only after a defect was put right at the test station.

About average - within 2.6 points of the 86.87% figure for all motorcycles tested.

Pass rate 89.43% 313 of 350

Fixed at the station 2.86% passed after an on-the-spot repair

Average mileage at test 30,213 miles

Average age at test 12.78 years old

Engine 645cc MOT class 2

For sale now 0 Suzuki DL 650 AL2 adverts

What to check before the MOT

Built from this model's own failure record, not general advice.

Start with has a serious fluid leak - it accounts for 33.3% of failed tests on this model.
Then check tread depth is below minimum requirements of 1.0mm and excessively binding, the next two most common reasons.
The most common advisory is tread depth is below minimum requirements of 1.0mm (5.7% of all tests) - not a failure, but money you will spend sooner or later.
Average recorded mileage at test is 30,213 miles, which is the number to compare any advert against.

Pass rate by age

A single pass rate hides the most useful thing in this data: how the same model behaves at three years old and at fifteen.

Age at test	Pass rate		Tests
11-15 years	89.43%		350

Why the Suzuki DL 650 AL2 fails

Share of failed tests on this model where the item was recorded. One test can fail on several items, so the column does not add up to 100%.

#	Item	Of failures	Tests
1	Has a serious fluid leak	33.3%	9
2	Tread depth is below minimum requirements of 1.0mm	22.2%	6
3	Excessively binding	14.8%	4
4	Contaminated	11.1%	3
5	Control functioning such that safe operation of the motorcycle is adversely affected	11.1%	3
6	Has excessive play	11.1%	3
7	Inoperative in the case of a single lamp or all lamps	11.1%	3
8	Less than 1.0 mm thick	11.1%	3
9	Not working	11.1%	3
10	Excessively stiff or notchy	7.4%	2

Most common advisories

Not a failure and not a legal requirement to fix - but an advisory that repeats year after year is money the next owner spends.

#	Item	Of all tests	Tests
1	Tread depth is below minimum requirements of 1.0mm	5.7%	20
2	Less than 1.0 mm thick	5.1%	18
3	Excessively stiff or notchy	4.3%	15
4	Has a serious fluid leak	3.7%	13
5	Worn to excess	3.4%	12
6	Noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition	3.1%	11
7	Excessively loose	2.9%	10
8	Has excessive play	2%	7
9	Seriously damaged	2%	7
10	Significantly and obviously worn	1.7%	6

Suzuki DL 650 AL2 for sale

No Suzuki DL 650 AL2 in stock at the moment - 529 other Suzuki bikes are advertised.

Used Suzuki DL 650 AL2 Used Suzuki All Suzuki Suzuki MOT statistics

Similar bikes compared

Models of comparable capacity, so the comparison means something.

Model	Tests	Pass rate	Avg mileage
Honda CB 397-750cc · 397-750cc	5,400	89.76%	19,444
Honda NC · 741cc	5,311	89.53%	22,765
Suzuki GSF600 · 600cc	4,890	80%	29,308
Honda CBR600F · 599cc	4,710	85.56%	30,651
Kawasaki ZX-6R · 599-636cc	4,510	81.62%	26,019
Suzuki SV650 · 646cc	3,834	80.99%	27,644

Source: DVSA MOT testing data, 2025 · updated Aug 2026 · licence and method

Suzuki DL 650 AL2 MOT questions

What is the MOT pass rate for the Suzuki DL 650 AL2?+

89.43% of Suzuki DL 650 AL2 MOT tests end in a pass, based on 350 tests in the DVSA dataset.

What is the most common MOT failure on a Suzuki DL 650 AL2?+

Has a serious fluid leak, which appears in 33.3% of failed tests on this model.

Where does this data come from?+

From the DVSA anonymised MOT testing dataset, which records every MOT carried out in England, Scotland and Wales. It is published under the Open Government Licence and covers 2025.

Does a high pass rate mean the bike is reliable?+

Not by itself. The MOT checks safety items - brakes, tyres, lights, structure - and says nothing about engines, gearboxes or electrics. Read it as a maintenance signal, not a reliability score.