MOT History from tests of petrol YAMAHA DT50s year 1981

Review the list of common YAMAHA DT50 failures below or to perform a specific mot history check on your YAMAHA then use our popular KnowYourCar service

mot history

Pass percent:75.86%

(The average a petrol YAMAHA DT50 year 1981 passes without issue)

Based on:29 MOT Tests

Most common failures	No# failures
Rear suspension bearing has excessive free play \|2.4.A2a\|i\|\|	2
Drive chain excessively tight \|6.2.1d\|	2
Steering movement excessively `notchy` with the wheel raised \|2.2.1b\|	2
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
Brake lever has inadequate reserve travel \|3.1.3b\|	1
Locking device\|s\| not correctly fitted which may make the motor bicycle dangerous to ride \|6.2.1h\|	1
Rear Floor brake test indicates a binding brake \|3.3.C2c\|	1
Brake pedal has inadequate reserve travel \|3.1.3b\|	1
Floor brake test No brake control achieves an efficiency of 30%. \|3.3.C1a\|	1
Steering movement excessively `notchy` with the weight on the lower bearing \|2.2.1a\|	1
Steering movement excessively stiff with the wheel raised \|2.2.1b\|	1
Riders seat insecure \|6.2.1a\|	1
Headlamp deteriorated and function impaired \|1.2.3a\|	1
Front Front wheel spindle securing nut locking device insecure \|2.3.3a\|	1
Rear Front wheel spindle securing nut locking device insecure \|2.3.3a\|	1
Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking Sidestand pivots inside swingarm when suspension compressed due to excessive wear \|6.1.1c\|	1
Offside Front Direction indicator not working \|1.5.1c\|	1
Headlamp aim headlamp deteriorated and function impaired \|1.2.3a\|	1
Headlamp at least one does not illuminate on dipped beam \|1.2.2a\|i\|\|	1
Headlamp at least one does not illuminate on main beam \|1.2.2a\|ii\|\|	1
Rear Brake drum\|s\| securing bolt\|s\| loose \|3.2.A1g\|	1
Headlamp aim out of alignment	1
Roller brake test The less effective brake control does not achieve an efficiency of 25%. \|3.3.A2b\|	1
Front Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	1
Steering headbearing has excessive free play \|2.2.2\|	1
Front Brake lever has inadequate reserve travel \|3.1.3b\|	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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Most common failures	No# failures
Rear suspension bearing has excessive free play \|2.4.A2a\|i\|\|	2
Drive chain excessively tight \|6.2.1d\|	2
Steering movement excessively `notchy` with the wheel raised \|2.2.1b\|	2
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
Brake lever has inadequate reserve travel \|3.1.3b\|	1
Locking device\|s\| not correctly fitted which may make the motor bicycle dangerous to ride \|6.2.1h\|	1
Rear Floor brake test indicates a binding brake \|3.3.C2c\|	1
Brake pedal has inadequate reserve travel \|3.1.3b\|	1
Floor brake test No brake control achieves an efficiency of 30%. \|3.3.C1a\|	1
Steering movement excessively `notchy` with the weight on the lower bearing \|2.2.1a\|	1
Steering movement excessively stiff with the wheel raised \|2.2.1b\|	1
Riders seat insecure \|6.2.1a\|	1
Headlamp deteriorated and function impaired \|1.2.3a\|	1
Front Front wheel spindle securing nut locking device insecure \|2.3.3a\|	1
Rear Front wheel spindle securing nut locking device insecure \|2.3.3a\|	1
Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking Sidestand pivots inside swingarm when suspension compressed due to excessive wear \|6.1.1c\|	1
Offside Front Direction indicator not working \|1.5.1c\|	1
Headlamp aim headlamp deteriorated and function impaired \|1.2.3a\|	1
Headlamp at least one does not illuminate on dipped beam \|1.2.2a\|i\|\|	1
Headlamp at least one does not illuminate on main beam \|1.2.2a\|ii\|\|	1
Rear Brake drum\|s\| securing bolt\|s\| loose \|3.2.A1g\|	1
Headlamp aim out of alignment	1
Roller brake test The less effective brake control does not achieve an efficiency of 25%. \|3.3.A2b\|	1
Front Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	1
Steering headbearing has excessive free play \|2.2.2\|	1
Front Brake lever has inadequate reserve travel \|3.1.3b\|	1

MOT History from tests of petrol YAMAHA DT50s year 1981

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