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MOT History from tests of petrol YAMAHA YZ400s year 1998

Review the list of common YAMAHA YZ400 failures below or to perform a specific mot history check on your YAMAHA then use our popular KnowYourCar service

mot history
Pass percent:33.33%
(The average a petrol YAMAHA YZ400 year 1998 passes without issue)
Based on:9 MOT Tests
Most common failuresNo# failures
Rear Wheel spoke excessively loose |4.2.1b|2
Front Brake lever attachment screws missing |3.1.2b|1
Riders seat insecure |6.2.1a|1
Registration plate issues1
Rear reflector on motorcycle missing |1.4.1|1
Rear Rear reflector on motorcycle missing |1.4.1|1
Rear Front wheel bearings have excessive free play |2.3.5b|1
Front Brake lever is bent and the brake cannot be readily applied |3.1.3c|1
Offside Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c|1
Offside Front Front shock absorber seal failed and leaking oil |2.3.3|1
Offside Rear 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
Nearside Front Clutch lever positioned so it cannot be readily operated. |6.2.1g|1
Drive chain excessively tight |6.2.1d|1
Rear wheel bearings have excessive free play |2.4.A.2c|1
Horn not working |1.7.3a|1
Stop lamp does not illuminate immediately a brake applies |1.3.1a|1
Rear position lamp does not illuminate immediately when it is switched on |1.1.3a|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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