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MOT History from tests of petrol HARLEY-DAVIDSON UNKNOWNs year 1991

Review the list of common HARLEY-DAVIDSON UNKNOWN failures below or to perform a specific mot history check on your HARLEY-DAVIDSON then use our popular KnowYourCar service

mot history
Pass percent:83.78%
(The average a petrol HARLEY-DAVIDSON UNKNOWN year 1991 passes without issue)
Based on:74 MOT Tests
Most common failuresNo# failures
Registration plate issues3
Rear reflector missing |4.8.2 |a| |ii||2
Steering headbearing has excessive free play |2.2.2|1
Rear Floor brake test indicates a sticking brake |3.3.C2c|1
Direction indicators not working |1.5.1c|1
All direction indicators missing |4.4.1 |a| |ii||1
Horn not working |7.7 |a| |ii||1
Rear Stop lamp not working |4.3.1 |a| |ii||1
Headlamp not working on dipped beam |4.1.1 |a| |ii||1
Headlamp not working on main beam |4.1.1 |a| |ii||1
Offside Steering operation fouling on the fuel tank or bodywork on full lock ineffective lock stop |2.1.4 |b||1
Drive chain excessively loose |6.1.7 |c| |i||1
Rear Wheel fixing missing |single fixing| splitpin |5.2.1 |a| |ii||1
Headlamp aim out of alignment1
Rear 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 Valve stem seriously misaligned |5.2.3 |j||1
Fuel system component leaking excessively or a risk of fire Carburettor leaking fuel onto engine |6.1.3 |b| |ii||1
Rear Brake excessively binding (1.2.1 (f))1
Front Brake excessively binding (1.2.1 (f))1
Steering headbearing has excessive wear or free play (2.2.2 (f) (i))1
Stop lamp not working (4.3.1 (a) (ii))1
Stop lamp not working possible staying on and position light not working? (4.3.1 (a) (ii))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.

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