| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Brake hose excessively deteriorated | 5 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 4 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Footrest insecure (6.2.12 (a)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Front Brake hose excessively damaged |1.1.12 |b| |ii|| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear suspension bush has excessive free play swinging arm |2.4.A2a|i|| | 1 |
| Rear Drive chain sprocket so loose it is likely to fail bearing has excessive play |6.1.7 |c| |ii|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 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 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Drive chain excessively tight, so that it is likely to fail |6.1.7 |k| |ii|| | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Rear Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Nearside Rear Direction indicator not working Bulb (4.4.1 (a) (ii)) | 1 |
| Brake excessively binding front brake (1.2.1 (f)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Fuel tank leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Brake fluid reservoir fluid not visible front brake reservoir inadequate sight glass repaire (1.1.10 (d) (iii)) | 1 |
| Front Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Offside Rear Footrest insecure bolt missing |6.2.12 |a|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Offside Front Brake hose excessively damaged |1.1.12 |b| |ii|| | 1 |
| Front Footrest insecure (6.2.12 (a)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Position lamp not working Front position lamp not working (4.2.1 (a)) | 1 |
| Headlamp aim unable to be tested Headlamp aim not tested due to dipped beam not working (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam Dipped beam not working (4.1.1 (a) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted Drive chain C clip incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Brake hose damaged and likely to fail |1.1.12 |a|| | 1 |
| Offside Rear Stop lamp not working rear light does not work when foot brake applied |4.3.1 |a| |ii|| | 1 |
| Central Front Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Central Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |