| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 45 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 23 |
| Registration plate issues | 14 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Drive chain excessively loose |6.2.1d| | 12 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 8 |
| Throttle operating incorrectly |6.2.1f| | 8 |
| Horn not working |1.7.3a| | 7 |
| Drive chain worn to excess |6.2.1e| | 6 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 6 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 6 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear Position lamp not working (4.2.1 (a)) | 6 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 6 |
| Direction indicators not working |1.5.1c| | 5 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 5 |
| Front Position lamp not working (4.2.1 (a)) | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Registration plate lamp issues | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 4 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Direction indicator incorrect colour |1.5.1b| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Nearside Direction indicators not working |1.5.1c| | 2 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Fuel system component leaking (6.1.3 (b) (i)) | 2 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Nearside Rear Footrest insecure |6.2.1a| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front All direction indicators not working intermittent operation,work if handlebars are turned left or right but not straight on .front left hand indicator. (4.4.1 (a) (ii)) | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen beam image is incorrect . (4.1.2 (a)) | 1 |
| Dipswitch does not operate immediately when selected on main beam headlight elements are not operating singularly,so the high is on when low is on and visa versa.wired up wrong. (4.1.3 (b)) | 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 Motorcycle structure joining/attachment plate or fastening insecure engine mounting bolts/plates insufficient and poorly fitted (6.1.1 (b) (i)) | 1 |
| Rear Engine mounting/bracket excessively loose mounting lower bolt nut missing (6.1.8 (a) (ii)) | 1 |
| Fuel cap ineffective no seal fitted (6.1.3 (b) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Fuel pipe insecure on tank no securing device fitted (6.1.3 (a) (i)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Suspension component modified so the suspension is inoperative |5.3.3 |c| |ii|| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front suspension assembly component missing |2.3.1| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Brake performance not tested (1.2.1 (g)) | 1 |
| Nearside Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working of front brake lever (4.3.1 (a) (ii)) | 1 |
| Fuel cap leaking rubber perished (6.1.3 (b) (i)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Stop lamp not working hand or foot control (4.3.1 (a) (ii)) | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Offside Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Wheel alignment incorrect which adversely affects the steering handle bars misaligned with front wheel |2.5.1| | 1 |
| Nearside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Shock absorber has a serious fluid leak both fronts (5.3.2 (b)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 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 |
| Drive chain horseshoe locking device likely to become detached Missing |6.1.7 |j| |ii|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Steering lock stop missing |2.1.3| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Lower Brake locking device missing |3.2.A1e| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure chain guard (6.1.1 (b) (i)) | 1 |
| Brake master cylinder severely corroded |3.2.B1b| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Sidecar direction indicator not working |1.5.1c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Centre Front Front position lamp insecure |1.1.1c| | 1 |
| Centre Front Headlamp damaged and function impaired |1.2.3a| | 1 |
| Offside Front Upper Throttle operating incorrectly |6.2.1f| | 1 |
| Front Valve stem seriously damaged VALVE PERISHED |5.2.3 |j|| | 1 |
| Offside Front Position lamp switch insecure |4.2.2 |b|| | 1 |
| Nearside Rear Footrest insecure |6.2.12 |a|| | 1 |
| Nearside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride front foot peg split pin missing |6.2.1h| | 1 |
| Nearside Rear Footrest insecure rear foot peg bolt missing |6.2.1a| | 1 |
| Nearside Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Stop lamp not working brake light switch |4.3.1 |a| |ii|| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Throttle operating incorrectly throttle does not return |6.2.1f| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Fuel cap leaking (6.1.3 (b) (i)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Gradient brake test indicates a sticking brake |3.3.D1c| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Throttle operating incorrectly full lock right hand side operating throttle sticks on |6.2.1f| | 1 |
| Handlebar handgrip not secure to handlebars. left hand side moving round on bar |2.1.1c| | 1 |
| Rear position lamp does not face the rear |1.1.1d| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Rear Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Front Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear suspension bearing has excessive free play swinging arm has excessive movement |2.4.A2a|i|| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride split link fitted wrong |6.2.1h| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected loose on handle bar. (6.2.7 (a) (ii)) | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Offside Direction indicator insecure |1.5.3b| | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Offside Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Fuel system component insecure air box |7.2.1b| | 1 |
| Fuel system component leaking |6.1.3 |b| |i|| | 1 |
| Rear Brake reaction bracket excessively worn |1.1.15 |b|| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Brake lagging in operation |1.2.1 |d|| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Footrest missing |6.2.1a| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Handlebar fractured (2.2.1 (c) (i)) | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Front Brake component modification unsafe (1.1.21 (d) (i)) | 1 |
| Front Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| All direction indicators not working NOT FLASHING (4.4.1 (a) (ii)) | 1 |
| Rear Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged PERISHED (5.2.3 (j)) | 1 |
| Rear Brake disc insecure TWO BOLTS MISSING (1.1.14 (a) (ii)) | 1 |
| Riders seat with a defective supporting structure (6.2.5 (a) (i)) | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Exhaust system insecure LEFT & RIGHT (6.1.2 (a)) | 1 |
| Rear Exhaust silencer likely to become detached LEFT & RIGHT, IMPROPERLY MOUNTED (8.1.1 (b) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases LEFT & RIGHT (6.1.2 (a)) | 1 |
| Nearside Motorcycle structure joining/attachment plate or fastening insecure SIDE STAND SPRING MISSING (6.1.1 (b) (i)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear All position lamps not working |4.2.1 |a|| | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Rear Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Fuel system component leaking at tank/tap area |6.1.3 |b| |i|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Handlebar retaining device missing (2.2.1 (b) (i)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Offside Front Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Nearside Front Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Front Exhaust is leaking and excessively noisey at head |7.1.1b| | 1 |
| Nearside Front Footrest insecure rubber |6.2.1a| | 1 |
| Steering control handlebar movement restricted by taut cables incorrect clutch cable |2.1.2c| | 1 |
| Steering control handlebar movement restricted by trapped cables incorrect clutch cable |2.1.2c| | 1 |
| Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Centre Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Nearside Indicator switch defective |1.5.4| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |