| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 50 |
| Registration plate lamp issues | 39 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 32 |
| Stop lamp remains on when the brakes are released | 29 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 20 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 18 |
| Front Brake excessively binding (1.2.1 (f)) | 15 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 13 |
| Headlamp aim not tested (4.1.2 (b)) | 13 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 11 |
| Horn not working (7.7 (a)) | 9 |
| Registration plate issues | 8 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 8 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 8 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 8 |
| Horn not working (7.7 (a) (ii)) | 7 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 6 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 5 |
| Horn not working |7.7 |a| |ii|| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 5 |
| All direction indicators not working (4.4.1 (a) (ii)) | 5 |
| Exhaust system insecure (6.1.2 (a)) | 5 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 4 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 4 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Riders seat insecure (6.2.5 (a) (ii)) | 4 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 3 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 3 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 3 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Horn sound not in accordance with requirements (7.7 (c)) | 3 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 2 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| 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)) | 2 |
| Front Headlamp aim not tested (4.1.2 (b)) | 2 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 2 |
| Nearside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Front Headlamp light intensity severely reduced (4.1.4 (a)) | 2 |
| Brake hose excessively deteriorated | 2 |
| Front Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Horn control not readily accesible. |1.7.2a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear brake |1.3.1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Stop lamp switch with a delay in operation control |4.3.2 |a| |ii|| | 1 |
| Rear Brake lever has insufficient reserve travel control |1.1.2 |a|| | 1 |
| Front Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Nearside Brake clevis joint insecure |1.1.15 |c|| | 1 |
| Nearside Brake lever has abnormal movement of levers indicating excessive wear or maladjustment incorrect lever fitted |1.1.15 |f|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Offside All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front All position lamps not working side light |4.2.1 |a|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Exhaust silencer likely to become detached |8.1.1 |b| |ii|| | 1 |
| Front Headlamp insecure Screws missing ! |4.1.1 |c|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Nearside Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Valve stem seriously damaged Leaks air when pushed |5.2.3 |j|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Floor brake test No brake control achieves an efficiency of 30% |1.2.2 |a| |i|| | 1 |
| Nearside Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Brake lever 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 |
| Rear Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake master cylinder defective but brake still operating |1.1.10 |b| |i|| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Rear Stop lamp not working Intermittent |4.3.1 |a| |ii|| | 1 |
| Horn not working only working intermittently |7.7 |a| |ii|| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Stop lamp showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| Rear Brake cable insecure | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle mounting insecure (6.2.7 (a) (ii)) | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Throttle operating incorrectly idle speed increases on RH lock (6.2.7 (a) (i)) | 1 |
| Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork (5.3.2 (b)) | 1 |
| Nearside Front Forks excessively deformed (2.2.2 (d) (i)) | 1 |
| Offside Front Forks excessively deformed (2.2.2 (d) (i)) | 1 |
| Nearside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working when applying front brake (4.3.1 (a) (ii)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Rear Upper Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Brake lever insecure retaining bolt missing (1.1.2 (e) (i)) | 1 |
| Central Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Brake hose damaged and likely to fail Has been traped between lower yoke and steering stop (1.1.12 (a)) | 1 |
| Offside Rear Exhaust system insecure Exhaust silencer upper mounting bolt missing (6.1.2 (a)) | 1 |
| Headlamp aim not tested Not tested as bulb is incorrectly fitted, as is operating backwards (4.1.2 (b)) | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp not working from front brake (4.3.1 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen NO IMAGE (4.1.2 (a)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Central Front Headlamp not working on main beam bulb blown on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Exhaust system insecure exhaust mounting bracket broken (6.1.2 (a)) | 1 |
| Horn not working button missing. (7.7 (a) (ii)) | 1 |
| Offside Lower Exhaust system insecure Exhaust mount bolt missing. (6.1.2 (a)) | 1 |
| Central Rear Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced all rear body panels fixings and fastenings insecure (6.1.1 (b) (ii)) | 1 |
| Front Position lamp switch does not operate in accordance with the requirements Front side lamp (L.E.D) flickers off/on. (4.2.2 (a)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Rear Brake lever insecure nut missing and bolt hanging out (1.1.2 (e) (i)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Headlamp insecure Front panel containing headlamp insecure (4.1.1 (c)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak Fork oil seal (5.3.2 (b)) | 1 |
| Headlamp aim not tested bike not running so cannot test (4.1.2 (b)) | 1 |
| Headlamp light intensity severely reduced dipped beam (4.1.4 (a)) | 1 |
| Headlamp light intensity severely reduced main beam (4.1.4 (a)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle sticking, not returning correctly (6.2.7 (a) (ii)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Brake caliper insecure Bolts loose (1.1.16 (c) (i)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Fuel cap ineffective tank cap seal perished (6.1.3 (b) (i)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen bulb fitted wrong (4.1.2 (a)) | 1 |
| Headlamp not working on dipped beam uable to check lights as engine wont start (4.1.1 (a) (ii)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Central Front Upper Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Exhaust has a major leak of exhaust gases rusted out and holed (6.1.2 (a)) | 1 |
| Nearside Front Upper Stop lamp adversely affected by the operation of another lamp brake light working intermittently and adversely affecting other brake light (4.3.3 (b)) | 1 |
| Nearside Rear Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Central Front Steering operation restricted in free movement from lock to lock head bearings loose cect (2.1.4 (c)) | 1 |
| Offside Rear Lower Exhaust silencer insecure bolt missing rect (8.1.1 (b) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Brake grabbing severely (1.2.1 (c)) | 1 |
| Stop lamp not working rear brake (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp not working front brake does not opperate rear brake light (4.3.1 (a) (ii)) | 1 |
| Shock absorber insecurely attached both front exsessive play at top mounts (5.3.2 (a) (i)) | 1 |
| Steering headbearing excessively stiff or notchy notchy. Flat spot at centre position (2.2.2 (f) (i)) | 1 |
| Nearside Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Central Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Indicator switch inoperative switch missing (4.4.2 (a) (ii)) | 1 |
| Forks in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp aim not tested headlight not working (4.1.2 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls front brake not working (4.3.2 (a) (iii)) | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |
| Headlamp not working on main beam high beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Position lamp light intensity significantly reduced front (4.2.3 (a) (ii)) | 1 |
| Position lamp light intensity significantly reduced rear (4.2.3 (a) (ii)) | 1 |
| Front Stop lamp not working brake (4.3.1 (a) (ii)) | 1 |
| Throttle operating incorrectly engine raceing (6.2.7 (a) (i)) | 1 |
| Front Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Forks in such a condition that steering control is adversely affected Excessively reduced travel (2.2.2 (d) (ii)) | 1 |
| Stop lamp not working front control (4.3.1 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Brake lever is bent and the brake cannot be readily applied ball missing (1.1.2 (d)) | 1 |
| Rear Exhaust system insecure bolt missing (6.1.2 (a)) | 1 |
| Front Brake caliper inadequately mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Position lamp light intensity significantly reduced ONLY 2 OF 6 LEDS OPERATING (4.2.3 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect To right (4.1.2 (c)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam Switch opposite to light (4.1.3 (b)) | 1 |
| Front Shock absorber has negligible damping effect front forks rusty (5.3.2 (b)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Rear Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls front lever (4.3.2 (a) (iii)) | 1 |
| Front Headlamp aim not tested no dip beam (4.1.2 (b)) | 1 |
| Front Headlamp not working on dipped beam not working (4.1.1 (a) (ii)) | 1 |
| Front Upper Steering headbearing has excessive wear or free play front upper steering head bearings have free play (2.2.2 (f) (i)) | 1 |
| Riders seat insecure seat bucket bolts missing. (6.2.5 (a) (ii)) | 1 |
| Rear Brake lever insecure Pivot bolt securing nut missing. (1.1.2 (e) (i)) | 1 |
| Headlamp light intensity severely reduced Both high and low beam on at the same time. (4.1.4 (a)) | 1 |