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MOT History from tests of petrol YAMAHA XS400s year 1978

Review the list of common YAMAHA XS400 failures below or to perform a specific mot history check on your YAMAHA then use our popular KnowYourCar service

mot history
Pass percent:84.62%
(The average a petrol YAMAHA XS400 year 1978 passes without issue)
Based on:104 MOT Tests
Most common failuresNo# failures
Registration plate issues2
Rear position lamp does not illuminate immediately when it is switched on |1.1.3a|2
Rear reflector on motorcycle missing |1.4.1|2
Direction indicator flashing less than 60 times a minute |1.5.1c|1
An item not tested |Manual|1
Offside Rear Footrest insecure |6.2.1a|1
Headlamp aim out of alignment1
Rear Brake pedal has inadequate reserve travel |3.1.3b|1
Front wheel spindle securing nut locking device insecure |2.3.5a|1
Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a|1
Front Hydraulic brake control feels spongy |3.1.4a|1
Rear Hydraulic brake control feels spongy |3.1.4a|1
Front Brake hose leaking fluid |3.2.B4|1
Front suspension has inadequate damping effect. |2.3.6c|1
Front suspension has excessive stiffness in the suspension movement. |2.3.6b|1
Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2|1
Front Brake lever is positioned so that the brake cannot be readily applied |3.1.3c|1
Horn control not readily accesible. |1.7.2a|1
Front Brake lever is so short and the brake cannot be readily applied |3.1.3c|1
Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k|1
Brake linkage has abnormal movement due to maladjustment |3.2.A1i|1
Rear Brake pipe inadequately supported |3.2.B2b|1
Direction indicator incorrect colour |1.5.1b|1
Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b|1
Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h|1
Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c|1
Stop lamp does not illuminate immediately a brake applies |1.3.1a|1
Offside Rear Lower Brake cylinder severely damaged |3.2.B1b|1
Centre Rear Upper Rear wheel bearings have excessive free play |2.4.A.2c|1
Headlamp aim beam image kick up to the offside |1.6|1
Fuel system component insecure |7.2.1b|1
Front wheel spindle securing nut locking device missing |2.3.3a|1
Front Brake component has restricted free movement and operation is likely to be impeded brake lever pivot seized |3.2.A1h|1
Nearside Rear Inner Rear shock absorber insecurely mounted |2.4.A.3b|1
Offside Rear Upper Rear shock absorber insecurely mounted |2.4.A.3b|1
Rear Lower Motorcycle structure has excessive corrosion which adversely affects braking or steering swinging arm (6.1.1 (c) (ii))1

We get to these numbers by trawling through over 1 billion MOT test results since 2004 and crunched the numbers. We remove anything to do with Tyres, as they are model independent and group together common non-model specific issues. We are trying to get to a picture of what models have what issues.

Please note: We take the data from the DVSA. This data is raw and can contain typos and spelling mistakes that garages may have entered while recording a MOT result. Specifically miss-match on names of models and makes. We are constantly cleaning the data so bear with the odd issue.

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