SV650.org - SV650 & Gladius 650 Forum



SV Talk, Tuning & Tweaking Discussion and chat on all topics and technical stuff related to the SV650 and SV1000
Need Help: Try Searching before posting

Reply
 
Thread Tools
Old 12-11-09, 07:40 PM   #1
Sorehead Rex
Guest
 
Posts: n/a
Default Charging fault?

Hi everyone from a noob to the Org. I'm going to launch straight in with a question in the hope that someone can help!

I have an 01 sv650s which has been fine up until now. I ride it every weekday, doing a 100 mile round trip for my commute. Everything was fine until wednesday morning when it wouldn't start due to a flat battery (typical sounds of failure to turn starter motor sufficiently). I charged the battery back up today and carried out some tests, following the Haynes manual.

Unfortunately I dont have a multimeter but I do have a battery/alternator function tester with led lights that come on at various voltages. I connected the charged battery and it lit up the green 12.6v light with the ignition off. I started the bike and turned on the high beams and the heated grips and the 12.6v light started to flicker, reverting mostly to the yellow 12v light. I revved the engine to 5k and the yellow 13.2v light came on but no more (the next green light, 14.5 did not illuminate). Switching the lights and grips off and letting it idle resulted in yellow 13.2v.

Does this sound like anything is wrong? I think there must be a fault somewhere as I definitely do enough mileage to keep the battery charged up. Would there be a battery problem or reg/rec?

Thanks in advance and apologies for lack of knowledge!
  Reply With Quote
Old 12-11-09, 07:51 PM   #2
Sid Squid
No, I don't lend tools.
Mega Poster
 
Sid Squid's Avatar
 
Join Date: Jul 2003
Location: Skunk Works, Nth London
Posts: 8,680
Default Re: Battery woes

There's lots on here about charging systems and charging faults - do a search and you'll find much to read, by many authors, myself included.

The common problem with the SV650 charging system is the regulator rectifier, but before condemning that part be aware that there are charging faults other than that.
__________________
If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing.

"a deathless anthem of nuclear-strength romantic angst"
Sid Squid is offline   Reply With Quote
Old 12-11-09, 07:56 PM   #3
Alpinestarhero
Guest
 
Posts: n/a
Default Re: Charging fault?

13.2 V is low; this isnt a common symptom of a reg/rec fault on SV's. however like SS saiys you cant completly rule it out.

Perhaps an alternator test is in order, to make sure there is enough charging occuring?
  Reply With Quote
Old 12-11-09, 08:03 PM   #4
monkimagic
Guest
 
Posts: n/a
Default Re: Charging fault?

Just completed soring mine out, with out a multimeter its hard to get an accurate picture but I would hazzard a guess. Ger yourself down to a breakers and borrow a Reg/-Rec and see if it sorts it. I put a SRAD600 reg/rec and it works fine so a reg/rec with matching wires would sufice.
  Reply With Quote
Old 14-11-09, 09:15 PM   #5
Sorehead Rex
Guest
 
Posts: n/a
Default Re: Charging fault?

Thanks for all the input so far. I got myself a multimeter and carried out a few tests:

bike off - 12.7v
ignition on, dip beam on - 12.0v
idle - 13.8v
idle with grips & main beam - 12.3v
5krpm - 13.2v
5krpm with grips & main beam - 12.8

My (inexpert) opinon would be that there is nothing actually wrong, just that the voltage output is insufficient to maintain the battery, especially now I'm using my grips and lights more. I have been reading about the mod where you wire the reg/rec output straight to the battery. This is not beyond my limited capability and I think I might give it a go. Would anyone agree?
  Reply With Quote
Old 14-11-09, 09:30 PM   #6
Biker Biggles
Member
Mega Poster
 
Biker Biggles's Avatar
 
Join Date: Jan 2005
Location: Barnet Herts
Posts: 5,071
Default Re: Charging fault?

I think you have a current drain and my money would be on the grips.
__________________
On a clear day we stand there and look further than the ordinary eye can see.
Biker Biggles is offline   Reply With Quote
Old 14-11-09, 09:44 PM   #7
Philbo
Guest
 
Posts: n/a
Default Re: Charging fault?

Looks like you've got a charging problem. 5k revs should be up around 14.5 Volts...Reg/Rec faults seem to be a common problem.

P.S. Unless the grips are a new addition, they wouldn't top of my list of "What could be the problem".

Last edited by Philbo; 14-11-09 at 09:48 PM.
  Reply With Quote
Old 14-11-09, 10:25 PM   #8
Sorehead Rex
Guest
 
Posts: n/a
Default Re: Charging fault?

Just done a leakage test, reading 00.2 on the multimeter set to 200u. I think this is ok, unless anyone can suggest otherwise. Checked the main fuse, which was very clean and free from corrosion.
  Reply With Quote
Old 18-11-09, 09:31 PM   #9
Sorehead Rex
Guest
 
Posts: n/a
Default Re: Charging fault?

Just in case anyone is interested, I have now managed to fix the problem. I checked the unregulated output, which was more than fine so I then unplugged every connection I could see, cleaned inside with emery paper and WD40, packed with grease and reconnected. Voltage at 5krpm then went up to about 13.8 with everything switched on. I then carried out the wiring mod where the reg/rec runs straight to the battery and got a consistent 14+v at every point in the rev range.
  Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
What sort of multimeter do I need? - charging fault. RobH13 SV Talk, Tuning & Tweaking 21 13-10-09 01:15 PM
c28 fault kcowgergmm SV Talk, Tuning & Tweaking 5 26-06-08 10:25 AM
Do you know what an F1 fault is? Jayneflakes SV Talk, Tuning & Tweaking 11 07-05-08 07:21 AM
Charging - AGAIN Tris SV Talk, Tuning & Tweaking 7 15-04-08 04:15 PM
Over charging Tris SV Talk, Tuning & Tweaking 8 21-02-06 12:13 PM


All times are GMT. The time now is 02:44 AM.


Powered by vBulletin® - Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.