GSX1400 Owners .org
Technically Speaking => Electrics => Topic started by: H26GSX on Tuesday, 11 November 2025, 03:42 AM
Had a drain issue the other week so put a fresh rectifier on. After only a few days it melted so bought another. It was faultless last week but today after leaving it for the weekend it was flat again. Freshly charged battery, only getting 12.3v at idle. Surely not another dodgy rectifier???
Even with throttle I'm barely getting over 12.4v. If the rectifier is grounded through the bolts and there is a 12v feed to the battery from it, surely it could only be a faulty ground wire? Although when checked I was getting 12v from the terminal that plugs into it? Would that be coming from the battery? Why would something designed to output get a 12v feed? Unless that was just battery voltage and uses that line to charge from rectifier output? 🤷🏼
Have a read of the chart in the below link, reckon you'll locate your issue.
https://gsx1400owners.org/forum/index.php?topic=306.0