MOT History from tests of petrol YAMAHA YN100s year 2001

Review the list of common YAMAHA YN100 failures below or to perform a specific mot history check on your YAMAHA then use our popular KnowYourCar service

mot history

Pass percent:70.08%

(The average a petrol YAMAHA YN100 year 2001 passes without issue)

Based on:1,173 MOT Tests

Most common failures	No# failures
Headlamp aim out of alignment	54
Exhaust is leaking and excessively noisey \|7.1.1b\|	38
Front Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	38
Rear Brake lever has inadequate reserve travel \|3.1.3b\|	33
Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	29
Headlamp at least one does not illuminate on dipped beam \|1.2.2a\|i\|\|	29
Headlamp at least one does not illuminate on main beam \|1.2.2a\|ii\|\|	19
Rear reflector on motorcycle missing \|1.4.1\|	18
Roller brake test The less effective brake control does not achieve an efficiency of 25%. \|3.3.A2b\|	18
Rear Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	18
Steering headbearing has excessive free play \|2.2.2\|	14
Registration plate issues	11
Rear Roller brake test indicates a sticking brake \|3.3.A1a\|	9
Riders seat insecure \|6.2.1a\|	8
Headlamp aim beam image kick up to the offside \|1.6\|	8
Rear reflector on motorcycle obscured \|1.4.1\|	8
Headlamp insecure \|1.2.3b\|	8
Front Steering headbearing has excessive free play \|2.2.2\|	7
Exhaust excessively deteriorated \|7.1.1a\|	7
Steering movement excessively `notchy` with the wheel raised \|2.2.1b\|	7
Horn not working \|1.7.3a\|	7
Front Brake disc\|s\| excessively worn \|3.2.A1l\|	7
Horn not loud enough to be heard by another road user \|1.7.3a\|	6
Rear Rear reflector on motorcycle missing \|1.4.1\|	6
Rear shock absorber has inadequate damping effect. \|2.4.A.3b\|	6
Rear position lamp does not illuminate immediately when it is switched on \|1.1.3a\|	6
Throttle operating incorrectly \|6.2.1f\|	5
Offside Rear Direction indicator not working \|1.5.1c\|	5
Rear shock absorber seal failed and leaking oil \|2.4.A.1c\|	5
Front Headlamp at least one does not illuminate on main beam \|1.2.2a\|ii\|\|	4
Rear Roller brake test indicates a binding brake \|3.3.A1a\|	4
Nearside Front shock absorber seal failed and leaking oil \|2.3.3\|	4
Direction indicators not working \|1.5.1c\|	4
Nearside Rear Direction indicators not working \|1.5.1c\|	4
Front wheel bearings have excessive free play \|2.3.5b\|	4
Rear Rear shock absorber has inadequate damping effect. \|2.4.A.3b\|	4
Roller brake test No brake control achieves an efficiency of 30%. \|3.3.A2a\|	4
Headlamp aim not tested \|1.6\|	3
Floor brake test The less effective brake control does not achieve an efficiency of 25%. \|3.3.C1b\|	3
Rear Rear reflector on motorcycle obscured \|1.4.1\|	3
Nearside Front Direction indicator not working \|1.5.1c\|	3
Rear Floor brake test indicates a sticking brake \|3.3.C2c\|	3
Rear Brake lining\|s\| less than 1.5 mm thick \|3.2.A1f\|i\|\|	3
Offside Direction indicator not working \|1.5.1c\|	3
Offside Rear Direction indicators not working \|1.5.1c\|	3
Offside Front Front shock absorber seal failed and leaking oil \|2.3.3\|	3
Nearside Rear Direction indicator not working \|1.5.1c\|	3
Front suspension has inadequate damping effect. \|2.3.6c\|	3
Offside Handlebar handgrip not secure to handlebars. \|2.1.1c\|	3
Direction indicators flashing more than 120 times per minute \|1.5.1c\|	3
Rear Exhaust is leaking and excessively noisey \|7.1.1b\|	3
Nearside Front Direction indicators not working \|1.5.1c\|	3
Steering movement excessively stiff with the weight on the lower bearing \|2.2.1a\|	2
Offside Front Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	2
Headlamp switch faulty \|1.2.4\|	2
Front Roller brake test indicates excessive fluctuation of brake effort \|3.3.A1d\|	2
Offside Front Stop lamp missing \|1.3.3a\|	2
Front position lamp does not illuminate immediately when switched on \|1.1.3a\|	2
Stop lamp affected by the operation of another lamp \|1.3.2\|	2
Front Front position lamp does not illuminate immediately when switched on \|1.1.3a\|	2
Nearside Direction indicator not working \|1.5.1c\|	2
Offside Rear Exhaust is leaking and excessively noisey \|7.1.1b\|	2
Wheel alignment incorrect which adversely affects the steering \|2.5.1\|	2
Front Headlamp insecure \|1.2.3b\|	2
Front Floor brake test indicates a binding brake \|3.3.C2c\|	2
Rear Rear position lamp does not illuminate immediately when it is switched on \|1.1.3a\|	2
Front Headlamp at least one does not illuminate on dipped beam \|1.2.2a\|i\|\|	2
Nearside Front Direction indicator flashing less than 60 times a minute \|1.5.1c\|	2
Rear Brake lever insecure \|3.1.2a\|	2
Front Brake lever has inadequate reserve travel \|3.1.3b\|	2
Rear wheel has a loose wheel nut\|s\| \|4.2.3a\|	2
Brake lever has inadequate reserve travel \|3.1.3b\|	2
Fuel cap does not fasten securely by a positive means \|7.2.2b\|	2
Offside Front Direction indicator not working \|1.5.1c\|	2
Nearside Front Front shock absorber seal failed and leaking oil \|2.3.3\|	2
Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort \|3.3.A1c\|	2
Front suspension assembly component excessively bent \|2.3.1\|	2
Headlamp dipped beam affected by the operation of another lamp \|1.2.2c\|	2
Rear Stop lamp affected by the operation of another lamp \|1.3.2\|	2
Front Direction indicators affected by the operation of another lamp \|1.5.1c\|	2
Rear Exhaust mounting does not fully support the exhaust system \|7.1.1.c\|	2
Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort \|3.3.A1c\|	2
Front Direction indicator affected by the operation of another lamp \|1.5.1c\|	2
Rear Direction indicator affected by the operation of another lamp \|1.5.1c\|	2
Front Exhaust is leaking and excessively noisey \|7.1.1b\|	2
Registration plate lamp issues	2
Direction indicators flashing less than 60 times a minute \|1.5.1c\|	2
Offside Front shock absorber seal failed and leaking oil \|2.3.3\|	2
Nearside Front Direction indicator not working \|4.4.1 \|a\| \|ii\|\|	2
Front Direction indicator not working \|1.5.1c\|	2
Front Wheel alignment incorrect which adversely affects the steering \|2.5.1\|	2
Roller brake test indicates excessive fluctuation of brake effort \|3.3.A1d\|	2
Brake lever cannot be applied smoothly \|3.1.3d\|	2
Headlamp not working on dipped beam (4.1.1 (a) (ii))	2
Headlamp aim not tested (4.1.2 (b))	2
All direction indicators not working (4.4.1 (a) (ii))	2

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.

Got suggestions? We’re improving this section all the time. If you have any suggestions, please let us know.

Most common failures	No# failures
Headlamp aim out of alignment	54
Exhaust is leaking and excessively noisey \|7.1.1b\|	38
Front Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	38
Rear Brake lever has inadequate reserve travel \|3.1.3b\|	33
Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	29
Headlamp at least one does not illuminate on dipped beam \|1.2.2a\|i\|\|	29
Headlamp at least one does not illuminate on main beam \|1.2.2a\|ii\|\|	19
Rear reflector on motorcycle missing \|1.4.1\|	18
Roller brake test The less effective brake control does not achieve an efficiency of 25%. \|3.3.A2b\|	18
Rear Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	18
Steering headbearing has excessive free play \|2.2.2\|	14
Registration plate issues	11
Rear Roller brake test indicates a sticking brake \|3.3.A1a\|	9
Riders seat insecure \|6.2.1a\|	8
Headlamp aim beam image kick up to the offside \|1.6\|	8
Rear reflector on motorcycle obscured \|1.4.1\|	8
Headlamp insecure \|1.2.3b\|	8
Front Steering headbearing has excessive free play \|2.2.2\|	7
Exhaust excessively deteriorated \|7.1.1a\|	7
Steering movement excessively `notchy` with the wheel raised \|2.2.1b\|	7
Horn not working \|1.7.3a\|	7
Front Brake disc\|s\| excessively worn \|3.2.A1l\|	7
Horn not loud enough to be heard by another road user \|1.7.3a\|	6
Rear Rear reflector on motorcycle missing \|1.4.1\|	6
Rear shock absorber has inadequate damping effect. \|2.4.A.3b\|	6
Rear position lamp does not illuminate immediately when it is switched on \|1.1.3a\|	6
Throttle operating incorrectly \|6.2.1f\|	5
Offside Rear Direction indicator not working \|1.5.1c\|	5
Rear shock absorber seal failed and leaking oil \|2.4.A.1c\|	5
Front Headlamp at least one does not illuminate on main beam \|1.2.2a\|ii\|\|	4
Rear Roller brake test indicates a binding brake \|3.3.A1a\|	4
Nearside Front shock absorber seal failed and leaking oil \|2.3.3\|	4
Direction indicators not working \|1.5.1c\|	4
Nearside Rear Direction indicators not working \|1.5.1c\|	4
Front wheel bearings have excessive free play \|2.3.5b\|	4
Rear Rear shock absorber has inadequate damping effect. \|2.4.A.3b\|	4
Roller brake test No brake control achieves an efficiency of 30%. \|3.3.A2a\|	4
Headlamp aim not tested \|1.6\|	3
Floor brake test The less effective brake control does not achieve an efficiency of 25%. \|3.3.C1b\|	3
Rear Rear reflector on motorcycle obscured \|1.4.1\|	3
Nearside Front Direction indicator not working \|1.5.1c\|	3
Rear Floor brake test indicates a sticking brake \|3.3.C2c\|	3
Rear Brake lining\|s\| less than 1.5 mm thick \|3.2.A1f\|i\|\|	3
Offside Direction indicator not working \|1.5.1c\|	3
Offside Rear Direction indicators not working \|1.5.1c\|	3
Offside Front Front shock absorber seal failed and leaking oil \|2.3.3\|	3
Nearside Rear Direction indicator not working \|1.5.1c\|	3
Front suspension has inadequate damping effect. \|2.3.6c\|	3
Offside Handlebar handgrip not secure to handlebars. \|2.1.1c\|	3
Direction indicators flashing more than 120 times per minute \|1.5.1c\|	3
Rear Exhaust is leaking and excessively noisey \|7.1.1b\|	3
Nearside Front Direction indicators not working \|1.5.1c\|	3
Steering movement excessively stiff with the weight on the lower bearing \|2.2.1a\|	2
Offside Front Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	2
Headlamp switch faulty \|1.2.4\|	2
Front Roller brake test indicates excessive fluctuation of brake effort \|3.3.A1d\|	2
Offside Front Stop lamp missing \|1.3.3a\|	2
Front position lamp does not illuminate immediately when switched on \|1.1.3a\|	2
Stop lamp affected by the operation of another lamp \|1.3.2\|	2
Front Front position lamp does not illuminate immediately when switched on \|1.1.3a\|	2
Nearside Direction indicator not working \|1.5.1c\|	2
Offside Rear Exhaust is leaking and excessively noisey \|7.1.1b\|	2
Wheel alignment incorrect which adversely affects the steering \|2.5.1\|	2
Front Headlamp insecure \|1.2.3b\|	2
Front Floor brake test indicates a binding brake \|3.3.C2c\|	2
Rear Rear position lamp does not illuminate immediately when it is switched on \|1.1.3a\|	2
Front Headlamp at least one does not illuminate on dipped beam \|1.2.2a\|i\|\|	2
Nearside Front Direction indicator flashing less than 60 times a minute \|1.5.1c\|	2
Rear Brake lever insecure \|3.1.2a\|	2
Front Brake lever has inadequate reserve travel \|3.1.3b\|	2
Rear wheel has a loose wheel nut\|s\| \|4.2.3a\|	2
Brake lever has inadequate reserve travel \|3.1.3b\|	2
Fuel cap does not fasten securely by a positive means \|7.2.2b\|	2
Offside Front Direction indicator not working \|1.5.1c\|	2
Nearside Front Front shock absorber seal failed and leaking oil \|2.3.3\|	2
Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort \|3.3.A1c\|	2
Front suspension assembly component excessively bent \|2.3.1\|	2
Headlamp dipped beam affected by the operation of another lamp \|1.2.2c\|	2
Rear Stop lamp affected by the operation of another lamp \|1.3.2\|	2
Front Direction indicators affected by the operation of another lamp \|1.5.1c\|	2
Rear Exhaust mounting does not fully support the exhaust system \|7.1.1.c\|	2
Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort \|3.3.A1c\|	2
Front Direction indicator affected by the operation of another lamp \|1.5.1c\|	2
Rear Direction indicator affected by the operation of another lamp \|1.5.1c\|	2
Front Exhaust is leaking and excessively noisey \|7.1.1b\|	2
Registration plate lamp issues	2
Direction indicators flashing less than 60 times a minute \|1.5.1c\|	2
Offside Front shock absorber seal failed and leaking oil \|2.3.3\|	2
Nearside Front Direction indicator not working \|4.4.1 \|a\| \|ii\|\|	2
Front Direction indicator not working \|1.5.1c\|	2
Front Wheel alignment incorrect which adversely affects the steering \|2.5.1\|	2
Roller brake test indicates excessive fluctuation of brake effort \|3.3.A1d\|	2
Brake lever cannot be applied smoothly \|3.1.3d\|	2
Headlamp not working on dipped beam (4.1.1 (a) (ii))	2
Headlamp aim not tested (4.1.2 (b))	2
All direction indicators not working (4.4.1 (a) (ii))	2

MOT History from tests of petrol YAMAHA YN100s year 2001

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