thrillseeker
Been Around the Block
I'm having some really weird charging problems with my 360 that I'm hoping someone could help with. When I start it up, charging seems fine. But after riding about 1/4 mile down the road the volts start to drop. It goes down to ~12.5 vdc and doesnt climb with revs and stays that way. I have a mini volt meter in my gauge to monitor it while I'm riding. I looked through Sonreir's charging 101 thread to trace the issue down.
Here's the steps I went through and what I found:
[list type=decimal]
[*]resistance across stator wires is around 1.3 ohms
[*]Start the bike and getting 13+ vdc across terminals at idle and 13-18 vac from stator at 1200 rpm. climbs to 60+ vac by 5000 rpm
[*]rev up to 4k a couple times and it drops down to 12.5 vdc across terminals at idle and only climbs to 12.7 vdc at 3k rpm
[*]disconnect stator to measure a/c and still getting the same high teens readings
[*]reconnect stator and idle goes back up to 13.4 vdc across terminals and climbs to 14.8 vdc at 3k rpm
[*]rev up to 4k for about 10 seconds and volts start to drop again
[*]measure stator wires (without disconnecting this time) and only getting 6 vac at idle and only climbs to 7 vac at 4k rpm
[*]kill bike and start again and getting 13+v at idle and 13v at stator wires and doesn’t climb with revs
[/list]
current setup:
everything rebuilt (motor, frame, wiring harness, etc.) with about 30 miles on the rebuild currently.
stock stator
aftermarket reg/rect
yellow/white stator wires connected for charging boost
This all happens whether headlight is on or off
It looks like there should be a locating dowel in the front of the left crankcase cover and it isnt there so the stator might be off center a bit? When I put the left crank cover on I did make sure there is space the whole way around the rotor so the rotor shouldn't be rubbing much, if at all.
I'm thinking my stator might be bad but the reistance seems fine. I'm very bad when it comes to dealing with electricity so any help is greatly appreciated!
Here's the steps I went through and what I found:
[list type=decimal]
[*]resistance across stator wires is around 1.3 ohms
[*]Start the bike and getting 13+ vdc across terminals at idle and 13-18 vac from stator at 1200 rpm. climbs to 60+ vac by 5000 rpm
[*]rev up to 4k a couple times and it drops down to 12.5 vdc across terminals at idle and only climbs to 12.7 vdc at 3k rpm
[*]disconnect stator to measure a/c and still getting the same high teens readings
[*]reconnect stator and idle goes back up to 13.4 vdc across terminals and climbs to 14.8 vdc at 3k rpm
[*]rev up to 4k for about 10 seconds and volts start to drop again
[*]measure stator wires (without disconnecting this time) and only getting 6 vac at idle and only climbs to 7 vac at 4k rpm
[*]kill bike and start again and getting 13+v at idle and 13v at stator wires and doesn’t climb with revs
[/list]
current setup:
everything rebuilt (motor, frame, wiring harness, etc.) with about 30 miles on the rebuild currently.
stock stator
aftermarket reg/rect
yellow/white stator wires connected for charging boost
This all happens whether headlight is on or off
It looks like there should be a locating dowel in the front of the left crankcase cover and it isnt there so the stator might be off center a bit? When I put the left crank cover on I did make sure there is space the whole way around the rotor so the rotor shouldn't be rubbing much, if at all.
I'm thinking my stator might be bad but the reistance seems fine. I'm very bad when it comes to dealing with electricity so any help is greatly appreciated!