MOT History from tests of petrol BSA B40s year 1964

Review the list of common BSA B40 failures below or to perform a specific mot history check on your BSA then use our popular KnowYourCar service

mot history

Pass percent:91.00%

(The average a petrol BSA B40 year 1964 passes without issue)

Based on:211 MOT Tests

Most common failures	No# failures
Steering headbearing has excessive free play \|2.2.2\|	5
Headlamp at least one does not illuminate on dipped beam \|1.2.2a\|i\|\|	2
Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	2
Headlamp at least one does not illuminate on main beam \|1.2.2a\|ii\|\|	1
Front position lamp does not illuminate immediately when switched on \|1.1.3a\|	1
Rear position lamp does not illuminate immediately when it is switched on \|1.1.3a\|	1
Horn not working \|1.7.3a\|	1
Front wheel bearings are excessively rough \|2.3.5b\|	1
Nearside Rear suspension bush has excessive free play \|2.4.A2a\|i\|\|	1
Offside Rear suspension bush has excessive free play \|2.4.A2a\|i\|\|	1
Offside Front shock absorber seal failed and leaking oil \|2.3.3\|	1
Nearside Rear shock absorber has inadequate damping effect. \|2.4.A.3b\|	1
Offside Rear shock absorber has inadequate damping effect. \|2.4.A.3b\|	1
Offside Front Front shock absorber seal failed and leaking oil \|2.3.3\|	1
Fuel system component leaking \|7.2.1a\|	1
Steering control fouling between components which interferes with the free movement of the steering \|2.1.2a\|	1
Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking \|6.1.1c\|	1
Offside Rear shock absorber insecurely mounted \|2.4.A.3b\|	1
Locking device\|s\| not correctly fitted which may make the motor bicycle dangerous to ride \|6.2.1h\|	1
Headlamp aim out of alignment	1
Roller brake test The less effective brake control does not achieve an efficiency of 25%. \|3.3.A2b\|	1
Wheel alignment incorrect which adversely affects the handling \|2.5.1\|	1
Nearside Handlebar handgrip not secure to handlebars. \|2.1.1c\|	1
Rear wheel spindle loose \|2.4.A.2b\|	1
Nearside Rear wheel spindle securing nut\|s\| loose \|2.4.A.2b\|	1
Riders seat insecure \|6.2.1a\|	1
Rear Exhaust is leaking and excessively noisey \|7.1.1b\|	1
Front Brake back plate\|s\| insecure \|3.2.A1j\|	1

We get to these numbers by trawling through over 1 billion MOT test results since 2004 and crunched the numbers. We remove anything to do with Tyres, as they are model independent and group together common non-model specific issues. We are trying to get to a picture of what models have what issues.

Please note: We take the data from the DVSA. This data is raw and can contain typos and spelling mistakes that garages may have entered while recording a MOT result. Specifically miss-match on names of models and makes. We are constantly cleaning the data so bear with the odd issue.

Got suggestions? We’re improving this section all the time. If you have any suggestions, please let us know.

Most common failures	No# failures
Steering headbearing has excessive free play \|2.2.2\|	5
Headlamp at least one does not illuminate on dipped beam \|1.2.2a\|i\|\|	2
Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	2
Headlamp at least one does not illuminate on main beam \|1.2.2a\|ii\|\|	1
Front position lamp does not illuminate immediately when switched on \|1.1.3a\|	1
Rear position lamp does not illuminate immediately when it is switched on \|1.1.3a\|	1
Horn not working \|1.7.3a\|	1
Front wheel bearings are excessively rough \|2.3.5b\|	1
Nearside Rear suspension bush has excessive free play \|2.4.A2a\|i\|\|	1
Offside Rear suspension bush has excessive free play \|2.4.A2a\|i\|\|	1
Offside Front shock absorber seal failed and leaking oil \|2.3.3\|	1
Nearside Rear shock absorber has inadequate damping effect. \|2.4.A.3b\|	1
Offside Rear shock absorber has inadequate damping effect. \|2.4.A.3b\|	1
Offside Front Front shock absorber seal failed and leaking oil \|2.3.3\|	1
Fuel system component leaking \|7.2.1a\|	1
Steering control fouling between components which interferes with the free movement of the steering \|2.1.2a\|	1
Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking \|6.1.1c\|	1
Offside Rear shock absorber insecurely mounted \|2.4.A.3b\|	1
Locking device\|s\| not correctly fitted which may make the motor bicycle dangerous to ride \|6.2.1h\|	1
Headlamp aim out of alignment	1
Roller brake test The less effective brake control does not achieve an efficiency of 25%. \|3.3.A2b\|	1
Wheel alignment incorrect which adversely affects the handling \|2.5.1\|	1
Nearside Handlebar handgrip not secure to handlebars. \|2.1.1c\|	1
Rear wheel spindle loose \|2.4.A.2b\|	1
Nearside Rear wheel spindle securing nut\|s\| loose \|2.4.A.2b\|	1
Riders seat insecure \|6.2.1a\|	1
Rear Exhaust is leaking and excessively noisey \|7.1.1b\|	1
Front Brake back plate\|s\| insecure \|3.2.A1j\|	1

MOT History from tests of petrol BSA B40s year 1964

Find us on Facebook