Charging Issue?

Here be mechanigeeks. Anything technical that is not a teething problem.
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wedge
125cc
125cc
Posts: 38
Joined: Sun Mar 16, 2014 9:03 pm
Country: uk
City: swansea
Year: 2009
Colour: Black & Orange
Model: SMT

Charging Issue?

Post by wedge » Tue Jul 18, 2017 10:53 am

Hi Folks,

I'm after a bit of advice. I've just replaced the battery on my 990 SM, and I think I still have a charging issue.

If I start the bike and leave to idle, it seems be discharge the battery - battery voltage decreases over time (in the 12.7v range). If I open the throttle slightly, it picks up as I would expect to 14.3/4v. If I leave idle and remove electrical load (headlight fuse out) I also see a more normal 14.3/4v.

What I'm not sure is if this is normal behaviour for this alternator, or do I have an issue? Issue likely to be stator or regulator?

Cheers for any help :)

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