Here's some good info on diagnostics and over-view of the electrical/charging systems on motorcycles...

Charging System Diagnostics - Rectifier/Regulator Upgrade - Triumph Forum: Triumph Rat Motorcycle Forums

https://cbrforum.com/forum/f2-tech-9...-solved-27739/

Technical Resources - Resources for Electrical Systems on Motorcycles and ATVs - ElectroSport

Ern

 

Hi I have just recently replaced the rectifier on my 93 cbr 600 f thinking this was the cause of my batteries problems, but I had it on charge for a good 8 hours yesterday after which it started fine, but left overnight the battery has lost all charge. It bump starts fine and seems to run fine is it simply time to replace my battery or is there some fault with the charging system? Any help would be most appreciated thanks.

 

Hi paul, nice threadjack.......

Sounds like your battery is toast, unless you have a draw. Charge it up and have it tested, or charge it and leave it disconnected overnight. If its not 100% in the morning when you hook it up, it's done.

 

sorry about jacking the thread, I tried to post it in a battery section but there was no little reply post box! Thanks for the advice I shall charge it and see how it is in the morning. Thanks!