| Most common failures | No# failures |
|---|
| Steering headbearing has excessive free play |2.2.2| | 37 |
| Headlamp aim out of alignment | 32 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 30 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 17 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 14 |
| Horn not working |1.7.3a| | 11 |
| Brake hose excessively deteriorated | 9 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 9 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 4 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front suspension has inadequate damping effect. |2.3.6c| | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Registration plate lamp issues | 4 |
| Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Brake hose damaged | 3 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Rear Brake lever attachment screws loose |3.1.2b| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Brake lever insecure |3.1.2a| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Registration plate issues | 2 |
| Rear Brake lever is inoperative |3.1.3c| | 2 |
| Plate brake test No brake control achieves an efficiency of 30%. |3.3.B2a| | 2 |
| Front Brake hose damaged and likely to fail (1.1.12 (a)) | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Front Brake component inadequately mounted Front Caliper bracket possibly bent and fouling disc |1.1.21 |c|| | 2 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working front sw faulty |4.3.1 |a| |ii|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake |1.3.1a| | 1 |
| Direction indicator flashing less than 60 times a minute all |1.5.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Brake master cylinder severely damaged cracked |3.2.B1b| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Throttle operating incorrectly too fast
|6.2.1f| | 1 |
| Offside Footrest insecure passengers panal foot rest |6.2.1a| | 1 |
| Front Brake master cylinder leaking hydraulic fluid inspection window |3.2.B1e| | 1 |
| Handlebar retaining device loose |2.2.1 |b| |i|| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort effort poor |3.3.A1c| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Wheel fractured |5.2.2 |a|| | 1 |
| Rear Wheel fractured |5.2.2 |a|| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Front position lamp missing |1.1.1a| | 1 |
| Rear suspension bush has excessive free play ENGINE TO FRAME PIVOT |2.4.A2a|i|| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Brake lever attachment screws loose |3.1.2b| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Exhaust mounting does not fully support the exhaust system Engine casing broken at exhaust mount |7.1.1.c| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear brake |1.3.1a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear position lamp adversely affected by the operation of another lamp untestable as stop lights remain on |1.1.3b| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Brake grabbing severely |1.2.1 |c|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Fuel pipe leaking poss fuel filter |7.2.1a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Exhaust is leaking and excessively noisey Header pipe gasket |7.1.1b| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Suspension component pin or bush excessively worn rear top shock |5.3.4 |a| |i|| | 1 |
| Brake master cylinder leaking inspection glass damaged/perished. |1.1.10 |b| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases Several holes and badly deteriorated |6.1.2 |a|| | 1 |
| Offside Headlamp switch insecure |1.2.4| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Horn replaced by a gong |1.7.3b| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Stop lamp not working front lever (4.3.1 (a) (ii)) | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Brake cylinder severely damaged |3.2.B1b| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Offside Stop lamp does not illuminate by the operation of both brake controls Front brake switch not working. (4.3.2 (a) (iii)) | 1 |
| Brake cylinder leaking Master cylinder glass inspection |1.1.16 |b| |i|| | 1 |
| Rear Brake lever mounting cracked |3.1.2c| | 1 |
| Rear Brake lever cracked |3.1.2c| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Brake hose fouling |3.2.B3b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Horn missing |1.7.1| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Direction indicator incorrect colour Lenses sun bleached |1.5.1b| | 1 |
| Front Brake fluid reservoir severely damaged Reservoir window cracking |3.2.B1b| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Exhaust mounting missing Supporting bolt missing |7.1.1c| | 1 |
| Front Position lamp not working side light bulb not working (4.2.1 (a)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Valve stem seriously damaged rubber perished (5.2.3 (j)) | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Nearside Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Nearside Headlamp switch insecure |1.2.4| | 1 |
| Brake lever mounting insecure |3.1.2a| | 1 |
| Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Offside Handlebar grip insecure to handlebar THROTTLE |2.2.1 |d| |ii|| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering play in steering |2.4 |a|| | 1 |
| Fork yoke insecure |2.2.2 |d| |i|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Footrest missing both |6.2.12 |a|| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Brake lever is inoperative REAR BRAKE LEVER COMES BACK TO HANDLEBAR |3.1.3c| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected loose on bar (6.2.7 (a) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Rear Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Nearside Rear Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| All direction indicators not working indicators working but incorrectly and sticking on solidly when opperated (4.4.1 (a) (ii)) | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Brake component is excessively corroded brake hose |3.1.5| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Front Headlamp not working on dipped beam bulb in wrong way (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam bulb in wrong way (4.1.1 (a) (ii)) | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Nearside Front Brake caliper inadequately mounted calliper grinding on disk |1.1.16 |c| |i|| | 1 |
| Central Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Brake grabbing severely Brake grabbing intermittently (1.2.1 (c)) | 1 |
| Offside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Offside Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Offside Rear Suspension attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| All direction indicators adversely affected by the operation of another lamp Switch turns on hazards when operated as indicator switch (4.4.3 (b)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Suspension component corroded and seriously weakened (5.3.3 (b) (i)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Front Forks excessively corroded (2.2.2 (d) (i)) | 1 |
| Front Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Riders seat insecure seat lock missing .main front mounting not correctly secured (6.2.5 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake pivot excessively worn front lever part broken .excessive wear (1.1.15 (b)) | 1 |
| Rear Shock absorber has negligible damping effect no damping on the rear supenshion (5.3.2 (b)) | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear suspension bush has excessive free play top shock |2.4.A2a|i|| | 1 |
| Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Front Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Brake lever is inoperative |3.1.3c| | 1 |
| Nearside Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Upper Rear suspension bush has excessive free play shock |2.4.A2a|i|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Offside Front Upper Suspension component pin or bush excessively worn free play in bush and bolt loose will not tighten up |5.3.4 |a| |i|| | 1 |
| Front Position lamp not working side lamp |4.2.1 |a|| | 1 |
| 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|| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front suspension assembly component excessively bent |2.3.1| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake has no recorded effort at a wheel Rear brakes |1.2.1 |a| |ii|| | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Seat insecure |6.2.1a| | 1 |
| 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)) | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front shock absorber seal failed and leaking oil BOTH |2.3.3| | 1 |
| Front Shock absorber insecurely attached front forks mount loose near and offside (5.3.2 (a) (i)) | 1 |
| Steering linkage insecure to the extent there is excessive movement at the mountings (2.1.3 (a) (ii)) | 1 |
| Fuel pipe so insecure there is a risk of fire (6.1.3 (a) (ii)) | 1 |
| Front Brake reaction bracket excessively worn (1.1.15 (b)) | 1 |
| Front Brake caliper damaged fouling brake disc (1.1.16 (a) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Central Exhaust has a major leak of exhaust gases exhaust manifold (6.1.2 (a)) | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |