Yamaha XJ400
Real ownership data from 91 UK XJ400 motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common XJ400 problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Lights and indicators | fail | 8.1% |
| Tyres | fail | 6.5% |
| Suspension | fail | 6.1% |
| Brakes | fail | 4.9% |
| Other | fail | 4.2% |
| Chain and sprockets | fail | 3.1% |
| Steering and head bearings | fail | 2% |
| Exhaust and emissions | fail | 1.5% |
Advisories (wear noted but not failed) are excluded above; the most common is suspension.
XJ400 mileage and reliability by year
Use this to judge whether a specific bike is high or low mileage for its age.
| Year | Examples | Median mileage | Miles/year | First-time pass |
|---|---|---|---|---|
| 2002 | 8 | 30,828 mi | 10,269 | 77.36% |
| 2000 | 9 | 17,792 mi | 3,013 | 78.38% |
| 1999 | 9 | 30,462 mi | — | 70.59% |
| 1998 | 11 | 39,183 mi | 552 | 73.47% |
| 1997 | 14 | 23,336 mi | 1,686 | 73.68% |
| 1996 | 5 | 30,015 mi | 2,012 | 69.57% |
| 1992 | 8 | 25,814 mi | 187 | 73.47% |
| 1991 | 7 | 15,216 mi | 1,717 | 54.17% |
XJ400 questions, answered with data
What are the most common problems with the Yamaha XJ400?
Across 91 UK examples, the most frequently recorded MOT faults are lights and indicators (8.1% of all recorded faults), tyres (6.5% of all recorded faults), suspension (6.1% of all recorded faults).
What is average mileage for a Yamaha XJ400?
The median Yamaha XJ400 in the UK has covered 23,867 miles, and typically rides about 1,467 miles a year. Half of all examples fall between 15,049 and 38,918 miles.
Is the Yamaha XJ400 reliable?
74.37% of Yamaha XJ400 MOT tests are passed first time, with an average of 1.41 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 91 Yamaha XJ400 motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.