I have an '06 SM 610 with no aftermarket electronics or lights. It stalled at a light a couple weeks ago and wouldn't start up, the voltage light on the cluster was flashing so I thought I just had a dead battery. Wheeled it to a friends shop close by, checked all fuses, checked the battery which was 12.6 V, jumped it to check the charging voltage which was fluctuating constantly from about 4-11 V. Strange! But this immediately made me think it was the voltage regulator. Rode it home, all the lights on the cluster and headlights were flashing the whole way home. Reading through the manual to test the voltage regulator it basically said what my bike was doing meant a bad regulator, so I ordered one...Yup you guessed it, same damn problem after I put the new one on. What else could it be? Thanks for your input! Joe
Next step is check the stator output to the regulator. Might pull the side cover and look at it. Look for pinched/chaffed/burned wiring harness. Don't know about the 610, but on the 630 the wires to the reg get pinched by the battery sometimes. Swap in a spare battery if you can. They can do weird things. Check all the frame/engine ground connections. .
Ok, I'll definitely try that. Yeah I have found a lot of posts where batteries are causing the same problems, which I thought was strange. But my battery is still holding 12.6 V which makes me think that might not be it? Either way I'll see if I can get a hold on one. Thanks for the suggestions!
Checked the whole wiring harness , grounds, and connections on the bike, everything looks fine. Now I'm getting a steady 10 V charge when its running.. Not getting much voltage from the stator to the regulator either.
Yup! After going through the whole bike and inspecting the stator like you said, I decided to just bust out the $90 and buy a battery. Runs great! Thanks again for the input.
