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MOT History from tests of petrol YAMAHA YAMAHAs year 1979

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

mot history
Pass percent:82.08%
(The average a petrol YAMAHA YAMAHA year 1979 passes without issue)
Based on:1,579 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment44
Registration plate issues31
Rear reflector on motorcycle missing |1.4.1|18
Stop lamp does not illuminate immediately a brake applies |1.3.1a|11
Headlamp at least one does not illuminate on dipped beam |1.2.2a|i||11
Front Roller brake test indicates a binding brake |3.3.A1a|11
Rear position lamp does not illuminate immediately when it is switched on |1.1.3a|11
Rear Roller brake test indicates a binding brake |3.3.A1a|9
Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a|7
Horn not working |1.7.3a|7
Horn not loud enough to be heard by another road user |1.7.3a|6
Steering headbearing has excessive free play |2.2.2|6
Stop lamp affected by the operation of another lamp |1.3.2|5
Rear wheel spindle securing nut locking device missing |2.4.A.2b|5
Rear Rear reflector on motorcycle missing |1.4.1|5
Front wheel spindle securing nut locking device missing |2.3.3a|5
Headlamp at least one does not illuminate on main beam |1.2.2a|ii||4
Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4|4
Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a|4
Rear position lamp adversely affected by the operation of another lamp |1.1.3b|4
Steering movement excessively `notchy` with the wheel raised |2.2.1b|4
Front Direction indicator not working |1.5.1c|4
Rear Direction indicator not working |1.5.1c|4
Riders seat insecure |6.2.1a|4
Nearside Front shock absorber seal failed and leaking oil |2.3.3|4
Offside Front shock absorber seal failed and leaking oil |2.3.3|4
Front Brake lever has inadequate reserve travel |3.1.3b|4
Front Direction indicator flashing less than 60 times a minute |1.5.1c|3
Rear Direction indicator flashing less than 60 times a minute |1.5.1c|3
Drive chain excessively loose |6.2.1d|3
Drive chain worn to excess |6.2.1e|3
Wheel alignment incorrect which adversely affects the handling |2.5.1|3
Front Front wheel spindle securing nut locking device missing |2.3.3a|3
Rear Wheel alignment incorrect which adversely affects the handling |2.5.1|3
Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii||3
Front wheel spindle securing nut locking device missing |2.3.5a|3
Front position lamp does not illuminate immediately when switched on |1.1.3a|3
Rear wheel bearings have excessive free play |2.4.A.2c|3
Front Floor brake test indicates a binding brake |3.3.C2c|3
Front Horn not working |1.7.3a|3
Service brake: efficiency below requirements |3.7.B.7|3
Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h|3
Direction indicators not working |1.5.1c|3
Nearside Handlebar handgrip not secure to handlebars. |2.1.1c|3
Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a||3
Horn missing |1.7.1|3
Headlamp not working on dipped beam (4.1.1 (a) (ii))3
All position lamps do not illuminate immediately when switched on |1.1.3a|2
Exhaust is leaking and excessively noisey |7.1.1b|2
Brake locking device missing |3.2.A1e|2
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|2
Front Roller brake test indicates a sticking brake |3.3.A1a|2
Nearside Rear Direction indicators not working |1.5.1c|2
Rear Gradient brake test indicates a binding brake |3.3.D1c|2
Front mudguard insecure |2.3.7|2
Rear Drive chain excessively loose |6.2.1d|2
Rear Brake pedal has inadequate reserve travel |3.1.3b|2
Rear Hydraulic brake control feels spongy |3.1.4a|2
Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a|2
Nearside Rear reflector missing |1.5.1a|2
Brake cable has wires broken and is significantly weakened |3.5.1b|2
Rear parking brake recording little or no effort2
Offside Rear Direction indicator not working |1.5.1c|2
Headlamp aim beam image kick up to the offside |1.6|2
Rear Floor brake test indicates a binding brake |3.3.C2c|2
Offside Rear Brake pipe inadequately clipped |3.6.B.1|2
Front Steering headbearing has excessive free play |2.2.2|2
Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a|2
Brake lever insecure |3.1.2a|2
Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a|2
Fuel system component leaking |7.2.1a|2
Direction indicators flashing less than 60 times a minute |1.5.1c|2
Throttle operating incorrectly |6.2.1f|2
Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b|2
Rear Front wheel spindle securing nut locking device missing |2.3.3a|2
Front Direction indicators not working |1.5.1c|2
Drive chain excessively tight |6.2.1d|2
Front wheel bearings have excessive free play |2.3.5b|2
Fuel tank leaking |7.2.1a|2
Rear suspension component loose |2.4.A.1a|2
Nearside rear brake recording little or no effort |3.7.B.5a|2
Rear reflector missing (4.8.2 (a) (ii))2
Nearside Outer Rear Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2|1
Offside Outer Rear Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2|1
Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2|1
Front front brake binding |3.7.B.1|1
Parking brake lever has no reserve travel |3.1.6b|1
Front Brake pedal fouling on other parts of the vehicle |3.3.A.4|1
Front wheel insecure |4.2.3b|1
Nearside Front Upper Direction indicators not working |1.5.1c|1
Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a|1
Brake lever has inadequate reserve travel |3.1.3b|1
Rear Stop lamp damaged and function impaired |1.3.3a|1
Rear Wheel fixing missing |single fixing| rear wheel axle lockind device missing |5.2.1 |a| |ii||1
Rear Hydraulic brake control creeps under load. |3.1.4a|1
Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b|1
Rear Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b|1
Front Brake disc|s| insecure |3.2.A1g|1
Front Front wheel bearings have excessive free play |2.3.5b|1
Front Front wheel bearings are excessively rough |2.3.5b|1
Front suspension has excessive stiffness in the suspension movement. |2.3.6b|1
Front Brake component defective due to a deliberate modification which significantly reduces the original strength |3.1.5|1
Stop lamp remains on when the brake is released |1.3.1e|1
Front Front wheel spindle securing nut locking device missing |2.3.5a|1
Brake rod excessively chafed |3.2.A1a|1
Nearside Footrest insecure |6.2.1a|1
Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c|1
Offside Front Front position lamp|s| not working |1.1.A.3b|1
Offside Rear Front position lamp|s| not working |1.1.A.3b|1
Brake lever attachment screws loose |9.3.1b|1
Offside Brake lever inappropriately repaired |9.3.1j|1
Centre Rear Upper Stop lamp missing |1.3.3a|1
Rear Stop lamp missing |1.3.3a|1
Front Front position lamp does not illuminate immediately when switched on |1.1.3a|1
Rear Front position lamp does not illuminate immediately when switched on |1.1.3a|1
Stop lamp not working both |1.2.1b|1
Rear Brake performance not tested |3.7.A.1|1
front brake binding |3.7.B.1|1
Offside Rear Wheel bolt|s| missing |4.2.A.1e|1
Rear Hydraulic brake cylinder inappropriately repaired |3.6.A.3|1
Rear Brake pedal functionally incomplete |3.3.A.1a|1
Nearside Direction indicator affected by the operation of another lamp |1.5.1c|1
Offside Direction indicator affected by the operation of another lamp |1.5.1c|1
Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4|1
Nearside Front Footrest insecure |6.2.1a|1
Nearside Exhaust mounting does not fully support the exhaust system |7.1.1.c|1
Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i|1
Front Horn not loud enough to be heard by another road user |1.7.3a|1
Front Brake lever cannot be applied smoothly |3.1.3d|1
Brake lever is positioned so that the brake cannot be readily applied |3.1.3c|1
Steering movement excessively stiff with the weight on the lower bearing |2.2.1a|1
All position lamps not working |1.1.A.3b|1
Centre Headlamp not working on dipped beam |1.7.5a|1
Centre Headlamp not working on main beam |1.7.5a|1
Front brake disc contaminated by brake fluid |3.5.1h|1
Front Braking system leaking |3.6.A.1|1
Front Hand operated control valve control cannot be moved over its full travel |3.2.1c|1
Nearside Direction indicator not working |1.5.1c|1
Outer Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i||1
Direction indicator affected by the operation of another lamp |1.5.1c|1
Indicator tell tale not functioning |1.5.2|1
Rear suspension movement is excessively stiff |2.4.A.3b|1
Rear suspension bush has excessive free play |2.4.A2a|i||1
Front Steering movement excessively stiff with the wheel raised |2.2.1b|1
Offside Front Direction indicator not working |1.5.1c|1
Footrest insecure fitted in the wrong direction |6.2.1a|1
Direction indicator incorrect colour white lights |1.5.1b|1
Stop lamp damaged and function impaired |1.3.3a|1
Offside Front Brake disc|s| excessively pitted |3.2.A1l|1
Rear Brake disc|s| has excessive run out |3.2.A1m|1
Exhaust has a major leak of exhaust gases |7.1.2|1
Exhaust mounting does not fully support the exhaust system |7.1.1.c|1
Front wheel spindle securing nut|s| loose |2.3.3a|1
Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k|1
Front Wheel alignment incorrect which adversely affects the steering |2.5.1|1
Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d|1
Roller brake test indicates a sticking brake |3.3.A1a|1
Brake pedal has inadequate reserve travel |3.1.3b|1
Rear Mechanical brake component locking device missing |3.5.1l|1
Mechanical brake component has restricted free movement1
Driver`s seat insecure |6.2.A.1|1
Vehicle Identification Number not permanently displayed |6.3.5.a|1
Nearside Rear Rear position lamp|s| missing |1.1.A.3a|1
Offside Rear Rear position lamp|s| missing |1.1.A.3a|1
Offside Rear reflector missing |1.5.1a|1
Offside Rear wheel bearing has excessive play |2.6.2|1
Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4|1
Nearside Front Shock absorber has an excessively worn bush |2.7.4|1
Offside Front Shock absorber has an excessively worn bush |2.7.4|1
Nearside Rear Brake pipe inadequately supported |3.6.B.1|1
Parking brake: efficiency below requirements |3.7.B.7|1
Brakes imbalanced across an axle1
Headlamp insecure |1.2.3b|1
Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b|1
Nearside Front Direction indicators not working |1.5.1c|1
Offside Rear Direction indicators not working |1.5.1c|1
Centre Exhaust mounting missing |7.1.1c|1
Nearside Front Direction indicator not working |1.5.1c|1
Nearside Front Front shock absorber seal failed and leaking oil |2.3.3|1
Offside Front Front shock absorber seal failed and leaking oil |2.3.3|1
Rear Stop lamp affected by the operation of another lamp |1.3.2|1
Front Brake lever insecure |3.1.2a|1
Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i||1
Chain guard insecure |6.2.1c|1
Exhaust has part of the system missing |7.1.1a|1
Direction indicators not working all |1.5.1c|1
Brake pipe union leaking fluid |3.2.B4|1
Offside Rear Rear shock absorber insecurely mounted |2.4.A.3b|1
Nearside Rear Rear shock absorber insecurely mounted |2.4.A.3b|1
Rear Position lamp not working |4.2.1 |a||1
Nearside Handlebar mounting clamp bolt loose |9.2.1c|1
Footrest insecure |9.6.1|1
Brake lever has inadequate reserve travel |9.3.1f|1
Axle king pin retaining device missing |2.5.A.3a|1
Centre front brake recording little or no effort |3.7.B.5a|1
Offside Rear front brake recording little or no effort |3.7.B.5a|1
Rear shock absorber insecurely mounted |2.4.A.3b|1
Rear Rear reflector missing |4.8.2 |a| |ii||1
Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b||1
Front Headlamp incorrect colour |1.2.1|1
Wheel spoke excessively loose |4.2.1b|1
Nearside Rear Lower Shock absorber has a serious fluid leak |5.3.2 |b||1
Offside Rear Lower Brake indicates excessive fluctuation of brake effort |1.2.1 |e||1
Headlamp not working on dipped beam |4.1.1 |a| |ii||1
Headlamp aim not tested |4.1.2 |b||1
All position lamps not working |4.2.1 |a||1
Front Brake disc contaminated greasy |1.1.14 |b||1
Front Roller brake test indicates a severely juddering brake |3.3.A1b|1
Fuel cap does not fasten securely by a positive means |7.2.2b|1
Offside Front Steering lock stop ineffective |2.1.3|1
Nearside Drive chain worn to excess |6.2.1e|1
Nearside Rear Drive chain sprocket worn to excess |6.2.1e|1
Nearside Front Drive chain sprocket worn to excess |6.2.1e|1
Offside Rear Roller brake test indicates a binding brake |3.3.A1a|1
Offside Front Roller brake test indicates a binding brake |3.3.A1a|1
Front Motorcycle structure excessively corroded |6.1.1a|1
Front Front wheel spindle securing nut locking device insecure |2.3.5a|1
Rear Exhaust is leaking and excessively noisey |7.1.1b|1
Front Brake fluid reservoir fluid level dangerously low |3.2.B1d|1
Front Hydraulic brake control creeps under load. |3.1.4a|1
Front Brake lever has inadequate reserve travel brake |3.1.3b|1
Rear Brake reaction bracket insecure |3.2.A1j|1
Front Headlamp aim beam image kick up to the offside |1.6|1
Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h|1
Offside Rear Brake reaction bracket insecure |3.2.A1j|1
Rear wheel spindle securing nut|s| loose |2.4.A.2b|1
Front Rear wheel insecure |4.2.3b|1
An item not tested |Manual|1
Nearside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h|1
Rear Stop lamp remains on when the brake is released |1.3.1e|1
Front Wheel spoke excessively loose |4.2.1b|1
Front Headlamp aim does not move downwards when dipped |1.6.5|1
Front position lamp flickers when tapped lightly by hand |1.1.3c|1
Offside Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d|1
Front Headlamp switch faulty |1.2.4|1
Rear Rear spring worn and seriously weakened |2.4A1b|ii||1
Rear Rear suspension bush has excessive free play |2.4.A2a|i||1
Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h|1
Handlebar deformed |2.1.1b|1
Offside Handlebar handgrip not secure to handlebars. |2.1.1c|1
Drive chain fouling another component |6.2.1d|1
All direction indicators missing |4.4.1 |a| |ii||1
Front Headlamp insecure |1.2.3b|1
Footrest missing |6.2.1a|1
Offside Front Brake cylinder insecurely mounted |3.2.B1a|1
Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h|1
Front wheel bearings are excessively rough |2.3.5b|1
Headlamp aim not tested |1.6|1
Offside Front Brake caliper|s| securing bolt|s| missing |3.2.A1j|1
Front Steering lock stop ineffective |2.1.3|1
Headlamp dipped beam affected by the operation of another lamp |1.2.2c|1
Front Brake pipe inadequately supported |3.2.B2b|1
Nearside 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
Offside 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 cable badly frayed |3.2.A1b|1
Front Front shock absorber seal failed and leaking oil |2.3.3|1
Drive chain sprocket worn to excess |6.2.1e|1
Front suspension has inadequate damping effect. |2.3.6c|1
Front wheel spindle securing nut|s| loose |2.3.5a|1
Stop lamp not working |1.2.1b|1
Nearside Rear Brake hose leaking |3.6.A.1|1
Nearside Rear Brake pipe inadequately clipped |3.6.B.1|1
Fuel system component leaking |7.2.3|1
Hazard warning lamps not fitted |1.4.B.1a|1
Offside Obligatory mirror missing |8.1.1|1
Nearside Obligatory mirror missing |8.1.1|1
Direction indicators flashing less than 60 times a minute |1.4.A.2g|1
Offside rear brake recording little or no effort |3.7.B.5a|1
Headlamp aim headlamp damaged and function impaired |1.2.3a|1
Front Stop lamp does not illuminate immediately a brake applies |1.3.1a|1
Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a|1
Rear suspension bearing has excessive free play |2.4.A2a|i||1
Rear suspension component loose swing arm spindle |2.4.A.1a|1
Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b|1
Rear Brake back plate|s| securing bolt|s| missing |3.2.A1j|1
Offside Fuel system component leaking Carburettor |7.2.1a|1
Centre Rear reflector on motorcycle missing |1.4.1|1
Wheel more than one fixing loose front wheel spindle clamp |5.2.1 |a| |ii||1
Direction indicators flashing more than 120 times per minute |1.5.1c|1
Rear Brake hose fouling routed wrong |3.2.B3b|1
Throttle operating incorrectly Not returning |6.2.1f|1
Direction indicators not working Not fitted but still has idiot light |1.5.1c|1
Headlamp missing Mian and dip beam wrong way on switch |1.2.3a|1
Front position lamp adversely affected by the operation of another lamp |1.1.3b|1
Front wheel spindle loose Front |2.3.3a|1
Fuel cap sealing washer deteriorated |7.2.2c|1
Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j|1
Nearside Rear Footrest missing |6.2.1a|1
Offside Rear Footrest missing |6.2.1a|1
Nearside Front Roller brake test indicates a binding brake caliper catching disc |3.3.A1a|1
Wheel alignment incorrect which adversely affects the steering |2.5.1|1
Direction indicators affected by the operation of another lamp Nearside and offside |1.5.1c|1
Front Gradient brake test indicates a binding brake |3.3.D1c|1
Direction indicators affected by the operation of another lamp |1.5.1c|1
Front Gradient brake test indicates a sticking brake |3.3.D1c|1
Rear Gradient brake test indicates a sticking brake |3.3.D1c|1
Front shock absorber seal failed and leaking oil |2.3.3|1
Centre Front Front position lamp insecure |1.1.1c|1
Centre Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c|1
Centre Rear Rear wheel bearings have excessive free play |2.4.A.2c|1
Headlamp aim not tested (4.1.2 (b))1
Steering headbearing excessively stiff or notchy (2.2.2 (f) (i))1
Offside Rear Shock absorber insecurely attached (5.3.2 (a) (i))1
Rear Brake pedal has insufficient reserve travel (1.1.2 (a))1
Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i))1
Horn not working (7.7 (a) (ii))1
Nearside Front Direction indicator not working (4.4.1 (a) (ii))1
Offside Front Direction indicator not working (4.4.1 (a) (ii))1
Front Wheel spindle loose (5.2.1 (c) (i))1
Front Wheel spindle locking device missing (5.2.1 (d))1
Front Headlamp aim not tested (4.1.2 (b))1
Rear Position lamp not working (4.2.1 (a))1
Drive chain worn to excess (6.1.7 (c) (i))1
Rear Drive chain sprocket worn to excess (6.1.7 (c) (i))1
Drive chain so worn it is likely to fail (6.1.7 (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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