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MOT History from tests of petrol YAMAHA DT125s year 1991

Review the list of common YAMAHA DT125 failures below or to perform a specific mot history check on your YAMAHA then use our popular KnowYourCar service

mot history
Pass percent:64.39%
(The average a petrol YAMAHA DT125 year 1991 passes without issue)
Based on:643 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment50
Registration plate issues31
Horn not working |1.7.3a|20
Rear reflector on motorcycle missing |1.4.1|20
Drive chain excessively loose |6.2.1d|14
Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a|12
Drive chain worn to excess |6.2.1e|11
Front position lamp does not illuminate immediately when switched on |1.1.3a|10
Steering headbearing has excessive free play |2.2.2|10
Rear position lamp does not illuminate immediately when it is switched on |1.1.3a|9
Headlamp at least one does not illuminate on dipped beam |1.2.2a|i||9
Rear Wheel spoke excessively loose |4.2.1b|9
Horn not loud enough to be heard by another road user |1.7.3a|9
Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b|8
Front Brake disc|s| excessively worn |3.2.A1l|7
Stop lamp does not illuminate immediately a brake applies |1.3.1a|7
Front Roller brake test indicates a binding brake |3.3.A1a|7
Rear wheel spindle securing nut locking device missing |2.4.A.2b|7
Rear wheel bearings have excessive free play |2.4.A.2c|7
Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h|7
Direction indicators not working |1.5.1c|6
Rear suspension bush has excessive free play |2.4.A2a|i||6
Rear Drive chain sprocket worn to excess |6.2.1e|6
Nearside Rear Footrest missing |6.2.1a|6
Nearside Handlebar handgrip not secure to handlebars. |2.1.1c|6
Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k|6
Front wheel bearings have excessive free play |2.3.5b|6
Front Stop lamp does not illuminate immediately a brake applies |1.3.1a|6
Wheel alignment incorrect which adversely affects the handling |2.5.1|6
Nearside Rear Direction indicators not working |1.5.1c|5
Rear Footrest missing |6.2.1a|5
Offside Rear Footrest missing |6.2.1a|5
Rear Rear wheel bearings have excessive free play |2.4.A.2c|5
Steering movement excessively `notchy` with the wheel raised |2.2.1b|5
Throttle operating incorrectly |6.2.1f|5
Brake hose damaged4
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|4
Rear Direction indicators not working |1.5.1c|4
Exhaust is leaking and excessively noisey |7.1.1b|4
Front Wheel spoke excessively loose |4.2.1b|4
Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i||4
Drive chain excessively tight |6.2.1d|4
Nearside Front shock absorber seal failed and leaking oil |2.3.3|4
Rear Rear reflector on motorcycle missing |1.4.1|4
Fuel system component leaking |7.2.1a|3
Rear shock absorber seal failed and leaking oil |2.4.A.1c|3
Rear suspension bearing has excessive free play |2.4.A2a|i||3
Rear shock absorber has inadequate damping effect. |2.4.A.3b|3
Front Front position lamp does not illuminate immediately when switched on |1.1.3a|3
Nearside Front Direction indicators not working |1.5.1c|3
Rear Rear suspension bush has excessive free play |2.4.A2a|i||3
Offside Rear Direction indicators not working |1.5.1c|3
Front Horn not working |1.7.3a|3
Footrest missing |6.2.1a|3
Front Brake component worn and seriously reduced in strength |3.2.A1|3
Rear Roller brake test indicates a binding brake |3.3.A1a|3
Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d|3
Front Direction indicators not working |1.5.1c|3
Nearside Rear Direction indicator not working |1.5.1c|3
Front shock absorber seal failed and leaking oil |2.3.3|3
Headlamp not working on main beam (4.1.1 (a) (ii))3
Front All position lamps do not illuminate immediately when switched on |1.1.3a|3
Wheel spoke excessively loose |4.2.1b|3
Direction indicators flashing less than 60 times a minute |1.5.1c|3
Headlamp at least one does not illuminate on main beam |1.2.2a|ii||3
Headlamp aim headlamp deteriorated and function impaired |1.2.3a|3
Direction indicator not working |1.5.1c|3
Headlamp aim beam image kick up to the offside |1.6|3
Front Front wheel bearings have excessive free play |2.3.5b|3
Lower Rear mono-shock pivot excessively worn |2.4.B.4|2
Riders seat insecure |6.2.1a|2
Rear wheel rotation likely to be impeded |6.2.1b|2
An item not tested |Manual|2
Lower Rear suspension bearing has excessive free play |2.4.A2a|i||2
Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4|2
Rear Wheel spoke missing |4.2.1b|2
Rear Brake disc|s| excessively worn |3.2.A1l|2
Rear Drive chain excessively loose |6.2.1d|2
Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b|2
Rear reflector missing (4.8.2 (a) (ii))2
Headlamp not working on dipped beam (4.1.1 (a) (ii))2
Offside Handlebar handgrip not secure to handlebars. |2.1.1c|2
Offside Front shock absorber seal failed and leaking oil |2.3.3|2
Brake pedal insecure |3.1.2a|2
Direction indicator affected by the operation of another lamp |1.5.1c|2
Rear wheel has a loose wheel nut|s| |4.2.3a|2
Rear suspension component loose |2.4.A.1a|2
Rear wheel insecure |4.2.3b|2
Front Exhaust is leaking and excessively noisey |7.1.1b|2
Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a|2
Rear wheel spindle securing nut locking device insecure |2.4.A.2b|2
Front Position lamp not working (4.2.1 (a))2
Rear Brake excessively binding (1.2.1 (f))2
Direction indicators affected by the operation of another lamp |1.5.1c|2
Nearside Front Direction indicator not working |1.5.1c|2
Stop lamp remains on when the brake is released |1.3.1e|2
Rear All position lamps do not illuminate immediately when switched on |1.1.3a|2
Offside Direction indicators not working |1.5.1c|2
Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b|2
Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a|2
Front Wheel has an excessively distorted bead rim. |4.2.2|2
Offside Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b|2
Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c|2
Front Brake lever is so short and the brake cannot be readily applied |3.1.3c|2
Rear position lamp insecure |1.1.1c|2
Rear Stop lamp remains on when the brake is released |1.3.1e|2
Offside Rear Footrest insecure |6.2.1a|2
Rear Brake pedal pivots excessively worn |3.1.3a|2
Exhaust mounting does not fully support the exhaust system |7.1.1.c|2
Brake component has an inadequate repair |3.1.5|2
Rear mono-shock pivot excessively worn |2.4.B.4|2
Nearside Front Direction indicator missing |1.5.1a|2
Offside Front Direction indicator missing |1.5.1a|2
Nearside Rear Direction indicator missing |1.5.1a|2
Offside Rear Direction indicator missing |1.5.1a|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
Stop lamp not working (4.3.1 (a) (ii))2
All direction indicators not working (4.4.1 (a) (ii))2
Drive chain sprocket worn to excess |6.2.1e|2
Offside Direction indicators flashing less than 60 times a minute |1.5.1c|1
Nearside Front Direction indicators flashing less than 60 times a minute |1.5.1c|1
Front Brake disc|s| cracked |3.2.A1g|1
Rear suspension movement is excessively stiff |2.4.A.3b|1
Rear Brake locking device missing |3.2.A1e|1
Front Direction indicator not working |1.5.1c|1
Rear position lamp damaged and function impaired |1.1.1b|1
Nearside Direction indicator flashing less than 60 times a minute |1.5.1c|1
Offside Direction indicator flashing less than 60 times a minute |1.5.1c|1
Rear Brake disc|s| excessively pitted |3.2.A1l|1
Rear Brake pipe inadequately supported |3.2.B2b|1
Rear position lamp deteriorated and function impaired |1.1.1b|1
Stop lamp deteriorated and function impaired |1.3.3a|1
Rear Floor brake test indicates a binding brake |3.3.C2c|1
Horn control defective |1.7.2a|1
Rear Brake caliper|s| insecure |3.2.A1j|1
Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Connecting link incorrectly fitted |6.2.1h|1
Rear Wheel spoke excessively loose (5.2.2 (d))1
Nearside Rear Footrest insecure (6.2.12 (a))1
Headlamp aim projected beam image obviously incorrect (4.1.2 (c))1
Nearside Rear Footrest insecure |6.2.12 |a||1
Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i||1
Front Position lamp switch does not operate the front and rear position lamps |1.1.4c|1
Rear Position lamp switch does not operate the front and rear position lamps |1.1.4c|1
Fuel cap sealing washer torn |7.2.2c|1
Rear Front position lamp does not illuminate immediately when switched on |1.1.3a|1
Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k|1
Front Brake disc|s| securing bolt|s| missing |3.2.A1g|1
Nearside Front Direction indicator insecure |1.5.3b|1
Offside Rear Direction indicator insecure |1.5.3b|1
Offside Rear Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h|1
Steering headbearing has excessive wear or free play (2.2.2 (f) (i))1
Rear Shock absorber likely to become detached (5.3.2 (a) (ii))1
Rear Lower Engine mounting/bracket missing (6.1.8 (a) (ii))1
Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c|1
Clutch lever positioned so it cannot be readily operated. |6.2.1g|1
All direction indicators not working front & rear indicators do not work on any side (4.4.1 (a) (ii))1
Stop lamp not working rear brake light does not work off front brake control (4.3.1 (a) (ii))1
Stop lamp not working rear brake light does not work off rear brake control (4.3.1 (a) (ii))1
Horn not working horn does not work when pressed (7.7 (a))1
Stop lamp affected by the operation of another lamp |1.3.2|1
Offside Front Direction indicators not working |1.5.1c|1
Rear Exhaust markings indicating not for road use or similar wording |7.1.4|1
Rear Drive chain worn to excess |6.2.1e|1
Floor brake test indicates a binding brake |3.3.C2c|1
Direction indicator flashing less than 60 times a minute |1.5.1c|1
Clutch lever bent so it cannot be readily operated. |6.2.1g|1
Rear Brake component worn and seriously reduced in strength |3.2.A1|1
Front suspension assembly component excessively misaligned |2.3.1|1
Front Brake component is fractured |3.1.5|1
Nearside Front Direction indicator obscured |1.5.1a|1
Offside Front Direction indicator obscured |1.5.1a|1
Front Stop lamp emits other than a steady red light |1.3.1b|1
All direction indicators light intensity significantly reduced (4.4.3 (a))1
Drive chain excessively tight (6.1.7 (k) (i))1
Exhaust excessively deteriorated |7.1.1a|1
Rear Brake hose excessively stretched (1.1.12 (b) (ii))1
Headlamp dipped beam affected by the operation of another lamp |1.2.2c|1
Brake hose excessively deteriorated1
Offside Front Direction indicator not working |1.5.1c|1
Steering lock stop ineffective |2.1.3|1
Rear Direction indicator not working |1.5.1c|1
Nearside Handlebar handgrip not secure to handlebars. (2.1.1c)1
Offside Handlebar handgrip not secure to handlebars. (2.1.1c)1
Rear Rear reflector on motorcycle missing (1.4.1)1
Nearside Front Direction indicator missing (4.4.1 (a) (ii))1
Offside Front Direction indicator missing (4.4.1 (a) (ii))1
Brake excessively binding (1.2.1 (f))1
Front Roller brake test indicates a binding brake (3.3.A1a)1
Nearside Rear Direction indicator insecure (1.5.3b)1
Front wheel spindle securing nut(s) loose (2.3.5a)1
Brake pedal insecure (3.1.2a)1
Front Wheel spoke missing |4.2.1b|1
Front Brake lever insecure |1.1.2 |e| |i||1
Front Stop lamp switch with a delay in operation |4.3.2 |a| |ii||1
Rear Brake hose bulging under pressure |1.1.12 |d||1
Front Brake excessively binding |1.2.1 |f||1
Registration plate lamp issues1
Front Brake fluid reservoir fluid level significantly below minimum level |1.1.10 |d| |ii||1
Direction indicator flashing more than 120 times per minute |1.5.1c|1
Front wheel bearings are excessively rough |2.3.5b|1
Rear Brake pedal has inadequate reserve travel |3.1.3b|1
Nearside Front Upper Horn is not continous or uniform |1.7.3c|1
Brake master cylinder fluid level dangerously low |3.2.B1d|1
Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii||1
Nearside Direction indicators not working |1.5.1c|1
Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c|1
Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c|1
Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a|1
Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b|1
Rear Rear reflector missing (4.8.2 (a) (ii))1
Front Brake pipe inadequately supported |3.2.B2b|1
Nearside Position lamp switch insecure |1.1.4b|1
Nearside Indicator switch insecure |1.5.4|1
Handlebar mounting clamp loose |2.1.1a|1
Front position lamp missing |1.1.1a|1
Front Brake lever has inadequate reserve travel |3.1.3b|1
Front Brake master cylinder fluid level dangerously low |3.2.B1d|1
Fuel cap does not fasten securely by a positive means |7.2.2b|1
Nearside Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d|1
Rear Rear mono-shock pivot excessively worn |2.4.B.4|1
Offside Exhaust mounting missing |7.1.1c|1
Fork yoke insecure top nut loose (2.2.2 (d) (i))1
Fuel cap ineffective seal broken (6.1.3 (b) (i))1
Rear Wheel bearing has excessive play (5.1.3 (a) (i))1
Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i))1
Stop lamp adversely affected by the operation of another lamp (4.3.3 (b))1
Brake lever pivots excessively worn |3.1.3a|1
Rear position lamp adversely affected by the operation of another lamp |1.1.3b|1
Front Headlamp aim beam image kick up to the offside |1.6|1
Nearside Direction indicators flashing more than 120 times per minute |1.5.1c|1
Front Riders seat insecure |6.2.1a|1
Indicator tell tale not operating correctly |1.5.2|1
Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c|1
Front suspension assembly component loose |2.3.1|1
Handlebar mounting clamp bolt loose |2.1.1a|1
Rear Wheel spoke excessively bent |4.2.1b|1
Front Drive chain sprocket worn to excess |6.2.1e|1
Front Direction indicator insecure |1.5.3b|1
All position lamps do not illuminate immediately when switched on |1.1.3a|1
Centre Rear reflector on motorcycle missing |1.4.1|1
Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Split link |6.2.1h|1
Front Brake fluid reservoir fluid level dangerously low |3.2.B1d|1
Rear Fairings insecure and likely to impede the steering |2.1.2e|1
Stop lamp does not illuminate immediately a brake applies On foot brake |1.3.1a|1
Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Secondly locking device missing on rear spindle |6.2.1h|1
Drive chain sprocket worn to excess Both |6.2.1e|1
Rear Lower Rear mono-shock pivot excessively worn |2.4.B.4|1
Front Hydraulic brake control creeps under load. |3.1.4a|1
Front Hydraulic brake control feels spongy |3.1.4a|1
Rear Hydraulic brake control feels spongy |3.1.4a|1
Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j|1
Front Brake disc|s| is excessively distorted Brake caliper rubbing disc due to modification! |3.2.A1m|1
Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a|1
Front Steering headbearing has excessive free play |2.2.2|1
Front Front position lamp incorrect colour |1.1.2a|1
Nearside Drive chain sprocket worn to excess |6.2.1e|1
Nearside Drive chain worn to excess |6.2.1e|1
Offside Rear reflector on motorcycle missing |1.4.1|1
Direction indicator not working |4.4.1 |a| |ii||1
Fuel cap leaking (6.1.3 (b) (i))1
Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e))1
Rear Front mudguard insecure |2.3.7|1
Front Brake locking device missing |3.2.A1e|1
Clutch lever shortened so it cannot be readily operated. |6.2.1g|1
Front An item not tested |Manual|1
Front wheel spindle securing nut locking device missing |2.3.5a|1
Rear Brake master cylinder insecurely mounted |3.2.B1a|1
Rear Brake master cylinder fluid level dangerously low |3.2.B1d|1
Rear Brake component is fractured |3.1.5|1
Rear Brake disc|s| securing bolt|s| missing |3.2.A1g|1
Indicator tell tale not functioning |1.5.2|1
Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b|1
Direction indicator missing |1.5.1a|1
Position lamp switch insecure |1.1.4b|1
Steering control fouling between components which interferes with the free movement of the steering |2.1.2a|1
Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a|1
Front Front shock absorber seal failed and leaking oil |2.3.3|1
Front Brake lever is positioned so that the brake cannot be readily applied |3.1.3c|1
Front Throttle operating incorrectly |6.2.1f|1
Front Wheel spoke excessively loose (5.2.2 (d))1
Horn sound not in accordance with requirements (7.7 (c))1
Horn is not continous or uniform |1.7.3c|1
Front Brake lining|s| contaminated by oil or grease |3.2.A1k|1
Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i||1
Locking devices not correctly fitted which may make the motor bicycle dangerous to ride rear wheel spindle split pin missing |6.2.1h|1
Front Wheel bearing rough when rotated (5.1.3 (b) (i))1
Centre Front Steering headbearing has excessive free play |2.2.2|1
Offside Front Footrest insecure |6.2.1a|1
Centre Front Brake lever cannot be released smoothly |3.1.3d|1
Rear Position lamp not working (4.2.1 (a))1
Headlamp not working on dipped beam Aim not checked (4.1.1 (a) (ii))1
Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii))1
Stop lamp remains on when the brakes are released1
Front Brake lever insecure |3.1.2a|1
Exhaust mounting missing |7.1.1c|1
All position lamps not working (4.2.1 (a))1
Horn not working (7.7 (a))1
Steering movement excessively rough with the weight on the lower bearing |2.2.1a|1
Rear wheel spindle loose |2.4.A.2b|1
Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a||1
Rear shock absorber insecurely mounted |2.4.A.3b|1
Nearside Clutch lever positioned so it cannot be readily operated. |6.2.1g|1
Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b|1
Rear Brake reaction bracket insecure |3.2.A1j|1
Front Clutch lever positioned so it cannot be readily operated. |6.2.1g|1
Stop lamp does not emit a steady light |1.3.1b|1
Stop lamp affected by the operation of the horn |1.3.2|1
Horn is not a constant note |1.7.3c|1
Rear Brake cylinder leaking hydraulic fluid |3.2.B1e|1
Steering headbearing has excessive wear or free play |2.2.2 |f| |i||1
Nearside Front Direction indicator incorrect colour |1.5.1b|1
Offside Direction indicator flashing more than 120 times per minute |1.5.1c|1
Headlamp insecure |1.2.3b|1
Headlamp aim beam image kick-up is to the offside |1.6.1|1
Horn not working (7.7 (a) (ii))1
Central Rear Rear reflector missing (4.8.2 (a) (ii))1
Central Rear Stop lamp not working (4.3.1 (a) (ii))1
Central Rear Position lamp light intensity significantly reduced (4.2.3 (a) (ii))1
Nearside Rear Lower Suspension rod attachment bracket/mounting insecure Bolt missing in suspension linkage. (5.3.3 (a) (i))1
Rear Brake disc contaminated grease from rear hub bearing (1.1.14 (b))1
Brake lever has insufficient reserve travel (1.1.2 (a))1
Rear position lamp flickers when tapped lightly by hand |1.1.3c|1
Horn not working |7.7 |a| |ii||1
Front Stop lamp not working |4.3.1 |a| |ii||1
Rear Wheel corroded to the extent that control of the motorcycle is likely to be adversely affected |5.2.2 |c| |ii||1
Rear reflector missing |4.8.2 |a| |ii||1
Offside Rear Direction indicator not working |4.4.1 |a| |ii||1
Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c|1
Headlamp main beam flickers when tapped lightly by hand |1.2.2c|1
Footrest insecure |6.2.1a|1
Front position lamp flickers when tapped lightly by hand |1.1.3c|1
Brake pedal has inadequate reserve travel |3.1.3b|1
Brake component is fractured |3.1.5|1
Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h|1
Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a|1
Stop lamp does not emit a steady light both |1.3.1b|1
Rear reflector on motorcycle incorrectly positioned |1.4.2d|1
Nearside Handlebar handgrip missing |2.1.1c|1
Rear Brake hose leaking fluid |3.2.B4|1
Centre Exhaust is leaking and excessively noisey |7.1.1b|1
Brake lever is so short and the brake cannot be readily applied |3.1.3c|1
Front Upper Steering headbearing has excessive free play |2.2.2|1
Rear Stop lamp does not emit a steady light |1.3.1b|1
Offside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4|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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