F 650 GS. 10.8v at tickover??

Shunt · Post by **Shunt** » Sun Jun 02, 2013 7:24 pm

Rectifier dead do we reckon?

If i turn everything on, Heated grips, main beam, indicators and brake lights. It creeps to 11.8-12v.

Battery was new in febuary, A Dynavolt one, aka A cheapy

.

Help please :laugh:

badsanta · Post by **badsanta** » Sun Jun 02, 2013 7:31 pm

What happens if you spin the engine to 3k revs or thereabouts? All info will be available here http://www.f650.co.uk/

special one · Post by **special one** » Sun Jun 02, 2013 7:45 pm

Does sound like the reg/rec, get the specs for it and test it with a meter, if that checks out it could be the stator or whatever charging set up your bike has.

I had exactly same fault on my drz, turned out to be the stator as reg/rec checked out fine to the specs.

Shunt · Post by **Shunt** » Sun Jun 02, 2013 7:45 pm

Similar output. Or drops lower.
Looked on f650. But I struggle to find info in the FAQ. I find it information overload

woodshack · Post by **woodshack** » Sun Jun 02, 2013 7:51 pm

Try posting in the tech section, normally pretty good (we are talking about the F650.co.uk site?}

knobbly · Post by **knobbly** » Sun Jun 02, 2013 8:30 pm

You can test the RR and the alternator but for go cheap and easy. Check the wiring and connections first. Connect the pos and neg from the RR directly to the battery and see what it's putting out then (they do a better job that way. Do a load test on the battery (fully charged) by putting your meter on the battery with the engine off then start the bike and see what the voltage drops to when starting the bike. As a very general rule if it over charges then it's the RR under charge it's the alternator but like I say that is a general rule.
There are several test for the alternator and the RR with a meter but try those first let us know the result.

knobbly · Post by **knobbly** » Sun Jun 02, 2013 8:38 pm

Just read the post again. If you rev the engine like badsanta said and the voltage is dropping a bit then I would take a good look at the wiring first and connect the RR directly to the battery see what happens.

badsanta · Post by **badsanta** » Mon Jun 03, 2013 8:19 am

Sounds like reg. is on the way out. I have the manual and will check and post the values and procedures here later today http://www.electrosport.com/
Voltage across battery should be 13.8-14v. Check battery earth connection and all connections in the charging system first. You can find all information at the link above.

Shunt · Post by **Shunt** » Mon Jun 03, 2013 11:35 pm

All the connections are good, clean and dry. Reminds me to grease the connections.

I'm just waiting in a new battery and reg. I'm guessing/hoping its the reg as its a lot cheaper than a stator.

Cheers all

bull · Post by **bull** » Mon Jun 03, 2013 11:59 pm

lets see if i understand this, if you turn everthing on the battery will drop to 11.8 volts, i am right about that. Well now i cant see anything wrong with that, with everthing on your are going to loose some volts in the battery with engine at idle, thats normal.