before you dig deep - make real sure the battery is hold the charge it should be - after it's been sitting over nite with out a charger on it measure the voltage with a digital volt meter - is it 12.7 or more?

is the battery a 94 also?? check starter wire for tight connection also..

Well, I bought a new battery this morning. After arriving home I checked the voltage, my multimeter shows 12,4. What if the charging circuit is defected? How should I check it out?

Thank you!

Reelthing wrote on 12/31/69 at 16:00:06:

...and does she start with the new battery or are the results the same as your original post?

12.4 is not very good for new battery - at 12.2-12.3 the engine will turn but the ign will not fire - to check for charge leave the multimeter hooked when you start the volts will head up

let's add this to the list - 12.27v will not start an '02

http://suzukisavage.com/cgi-bin/YaBB.pl?board=RubberSideDown;action=display;n...

attach a volt meter to a known good battery(one that withstands a load test) fire 'er up, being rpm up to 'bout shift point, volt meter should read minium, 13.8 to max of 14.8 volts. that'll keep most batterys at full charge.

IF the alt. can produce that kind of voltage with out control, don't think rotor, brushes, or stator at fault. if possible, try a known good reg,-rec. kinda difficult to trouble shoot, not being there. automotive alt. with external regs. could be put into an uncontroled out put by disconeting reg. and hot wiring alt. field. don't understand how you got an uncontroled output by just disconecting the reg. mabey sombody here could 'splain that to me. the 3 yellow wires comming the stator should show no continuity to each other or to ground, that would indicate a bad stator, if you put a ac volt meter on each yellow wire to ground with engine reved , each wire should show close to 75 acv. thats what they would show on a 1000, 1100, or 1200 honda wing, manual for LS should have those specs. just trying to be a little helpful if i can. diesel