| Most common failures | No# failures |
|---|
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 24 |
| Registration plate lamp issues | 23 |
| Headlamp aim out of alignment | 21 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 19 |
| Stop lamp remains on when the brakes are released | 14 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 12 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 12 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 9 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 9 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 8 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 8 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 8 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 7 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 7 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 7 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 7 |
| Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Rear Brake excessively binding (1.2.1 (f)) | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 6 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 5 |
| Horn not working (7.7 (a)) | 5 |
| Registration plate issues | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Nearside Rear Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 2 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 2 |
| Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 2 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Offside Rear Lower Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 2 |
| Stop lamp not working off foot pedal (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working from front lever (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working on foot brake (4.3.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Stop lamp not working Control 2 (Foot brake) (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working on rear brake pedal (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Offside Front Steering operation fouling on the fuel tank or bodywork on full lock Steering stop on frame distorted/bent (2.1.4 (b)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak Oil seal blown (5.3.2 (b)) | 1 |
| Front Horn not working Wire broken (7.7 (a)) | 1 |
| Nearside Rear Drive chain sprocket excessively loose All 4 bolts are loose (6.1.7 (c) (i)) | 1 |
| Offside Front Handlebar fouling on the fuel tank or bodywork on full lock Steering touching tank on right hand lock. Stop lock bent. Needs welding (2.1.4 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Both control switches inoperative (4.3.2 (a) (iii)) | 1 |
| Offside Rear Brake lever has insufficient reserve travel Air in system. Not enough safe reserve travel (1.1.2 (a)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm bushes. excessive play. (5.3.4 (a) (i)) | 1 |
| Rear Footrest missing rear footrests missing (6.2.12 (a)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Engine mounting/bracket missing (6.1.8 (a) (ii)) | 1 |
| Front Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Nearside Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Offside Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Central Rear Upper Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Rear Wheel bearing has excessive play Sprocket carrier (5.1.3 (a) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn Side to side play in swing arm bushes (5.3.4 (a) (i)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock Contacting fuel tank on both left and right lock (2.1.4 (a)) | 1 |
| Front Brake master cylinder insecure Mounting bolt missing (1.1.10 (c)) | 1 |
| Fuel system component leaking Fuel leak from carb (6.1.3 (b) (i)) | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected pedal fowls exhaust in operation (1.1.2 (b) (ii)) | 1 |
| Stop lamp not working foot leaver (4.3.1 (a) (ii)) | 1 |
| Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Front Brake component insecure two brake reservoir (1.1.21 (c)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Offside Rear Lower Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Central Rear Lower Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Front Brake hose excessively stretched (1.1.12 (b) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar repaired (2.2.1 (d) (ii)) | 1 |
| Stop lamp switch with a delay in operation front stop lamp switch (4.3.2 (a) (ii)) | 1 |
| All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Offside Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Nearside Suspension component pin or bush excessively worn swinging arm bush (5.3.4 (a) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Suspension component pin or bush excessively worn swingarm bushes (5.3.4 (a) (i)) | 1 |
| Rear Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Suspension arm pin or bush excessively worn swing arm mounting (5.3.4 (a) (i)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Rear reflector missing red reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Throttle control functioning such that safe operation of the motorcycle is adversely affected THROTTLE OPENS WHEN HANDLE BARS TURNED TO SIDE CABLE GETTING TRAPPED (6.2.7 (a) (ii)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Engine idle erratic, revving up to over 7000rpm with no throttle input (6.2.7 (a) (ii)) | 1 |
| Stop lamp not working Rear brake control (4.3.1 (a) (ii)) | 1 |
| Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle sticking open (6.2.7 (a) (ii)) | 1 |
| Rear Drive chain sprocket excessively loose sprocket moving, nuts finger tight (6.1.7 (c) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls inoperative on front control (hand Lever) (4.3.2 (a) (iii)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Offside Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Central Front Steering headbearing has excessive wear or free play reset bearings (2.2.2 (f) (i)) | 1 |
| Central Rear Suspension arm ball joint excessively worn adjust swing arm bearings (5.3.4 (a) (i)) | 1 |
| Stop lamp not working front control (4.3.1 (a) (ii)) | 1 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Rear Stop lamp not working rear break (4.3.1 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock Fouling fuel tank on N/S & O/S lock (2.1.4 (b)) | 1 |
| Nearside Rear Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn Side to side play in swingarm bushes (5.3.4 (a) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling Front wheel pointing towards N/S when bars dead ahead (2.4 (a)) | 1 |
| Rear Brake effort inadequate at a wheel Brake only achieving 21% & not locking (1.2.1 (a) (i)) | 1 |
| Offside Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Nearside Front Clutch lever shortened so it cannot be readily operated (6.2.7 (b)) | 1 |
| Brake pedal is bent and the brake cannot be readily applied Fouling lower fairing (1.1.2 (d)) | 1 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Forks excessively deformed Twisted yokes (2.2.2 (d) (i)) | 1 |
| Central Rear Brake pedal pivot has excessive free play (1.1.1 (b)) | 1 |
| Central Rear Upper Stop lamp does not illuminate by the operation of both brake controls rear brake light does not illuminate when rear brake pedal is pressed (4.3.2 (a) (iii)) | 1 |
| Central Rear Lower Suspension arm pin or bush excessively worn rear suspension swing arm bushes excessively worn resulting in excessive movement (5.3.4 (a) (i)) | 1 |
| Rear Inner Wheel bearing has excessive play rear wheel bearing worn in excess (5.1.3 (a) (i)) | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Drive chain excessively loose and catching centre stand (6.1.7 (c) (i)) | 1 |
| Throttle operating incorrectly sticking (6.2.7 (a) (i)) | 1 |
| Stop lamp not working when front brake is operated. (4.3.1 (a) (ii)) | 1 |
| Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Central Front Upper Position lamp not working (4.2.1 (a)) | 1 |
| Central Front Upper Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Upper Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Upper Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Rear Brake effort inadequate at a wheel with rear brake control (1.2.1 (a) (i)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Rear Suspension component has excessive wear or free play (5.3.3 (d)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Offside Front Footrest insecure BOLT MISSING (6.2.12 (a)) | 1 |
| Stop lamp not working Brake control 2 (4.3.1 (a) (ii)) | 1 |
| Rear Brake hose leaking brake union on rear caliper leaking (1.1.12 (c)) | 1 |
| Nearside Rear Shock absorber likely to become detached washer missing from top nut (5.3.2 (a) (ii)) | 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 |
| Throttle operating incorrectly On lock to lock check. (6.2.7 (a) (i)) | 1 |
| Rear Wheel more than one fixing loose (5.2.1 (a) (ii)) | 1 |
| Offside Front Steering operation impeded by a fairing (2.1.4 (e)) | 1 |
| Front Fuel cap ineffective Seal Split (6.1.3 (b) (i)) | 1 |
| Front Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Headlamp aim not tested no dip beam (4.1.2 (b)) | 1 |
| Handlebar deformed to the extent that steering is affected bent (2.2.1 (c) (ii)) | 1 |
| Fork yoke excessively deformed (2.2.2 (d) (i)) | 1 |
| Central Front Handlebar deformed to the extent that steering is affected handle bars not centered and pulling to the right (2.2.1 (c) (ii)) | 1 |
| Central Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Drive chain worn to excess uneven - seized links (6.1.7 (c) (i)) | 1 |
| Stop lamp not working When using rear brake control. (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working when front brake lever applied rear brake light not working. (4.3.1 (a) (ii)) | 1 |
| Headlamp aim not tested led bulb fitted - no measurable pattern (4.1.2 (b)) | 1 |
| Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Suspension component pin or bush excessively worn Swingarm to frame (5.3.4 (a) (i)) | 1 |
| Front Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Front Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Front All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Shock absorber has a serious fluid leak Right & left fork seals (5.3.2 (b)) | 1 |
| Stop lamp not working rear stop switch not working (4.3.1 (a) (ii)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure rear fork (6.1.1 (b) (i)) | 1 |
| Headlamp not working on main beam cant start bike to test lights (4.1.1 (a) (ii)) | 1 |
| Front Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Riders seat insecure not sat in the front fixing point (6.2.5 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn swingarm arm bearings (5.3.4 (a) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls rear brake not operating light on. (4.3.2 (a) (iii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected sticking (6.2.7 (a) (ii)) | 1 |
| Rear Inner Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Outer Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Brake performance not tested on rear brake (1.2.1 (g)) | 1 |
| Rear Drive chain sprocket so loose it is likely to fail bolts missing. (6.1.7 (c) (ii)) | 1 |
| Offside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Offside Rear Upper Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Stop lamp not working from rear brake (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Suspension component pin or bush excessively worn swingarm mounting (5.3.4 (a) (i)) | 1 |
| Rear Stop lamp switch with a delay in operation slow switching light off (4.3.2 (a) (ii)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Suspension arm ball joint excessively worn swing arm bushes excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Suspension component pin or bush excessively worn rear swinging arm mounting bushes excessive play (5.3.4 (a) (i)) | 1 |
| Rear Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Rear Wheel spindle loose Rear wheel moves back and forward when checking wheel bearing and swinging arm play. (5.2.1 (c) (i)) | 1 |