| Honda Trx400ex 1999 bulletins |
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
| ELECTRICAL SYSTEM - ALTERNATOR/GENERATOR/REGULATOR |
| 010300 | 03/01/2000 | | 622522 | Subject regarding customer complaints of starter clutch noise experienced on 1999 and 2000 trx400ex models. *tt | 2001-10-18 |