|
|
Alternator Repair? - XV750SE
|
Hi, My alternator died and so I dismantled the stator to have a
closer look. The actual windings are fine but where everything has
'smoked'is where the windings were joined to the outgoing wires. The
solder has melted and there is considerable 'black & crispiness' - so
much so that I cannot see what was originally connected to what.
I have read here that others have resoldered things to revive their
alternators. (I would buy a new one but for the fact that this wasn't
very old and I don't want to repeat history!) So I would like to hear
from anyone who has done this and/or some guidance as to where each
of the outgoing connectors should be connected to which wires
|
The 3-phases of your alternator are combined in the rectifier/regulator to
generate 12v DC. There is no particular phase-order. You'll need some
hi-temp plastic to insulate the connections from the frame. Check at an
auto-parts or Electrician's store.
Go back far enough on each of the 3 wires to preceed the 'burnt' shorted
area, then splice/solder in new wires, and then
BE SURE they don't short to ground. (Bike chassis/engine block). Once
you're out of the engine, make the connections to the regulator as short as
possible.
If you have an older bike with a head-lite on/off switch, with one of
the legs of the stator going to this switch, and then to the regulator,
REMOVE the wire, and run ALL of the lines from the stator DIRECTLY to the
regulator.
Remember that ALL of this is BEFORE the fuse box, and the fuses won't
help with shorts here.
regards, Lefty
|
|
If you are talking about the GS-550 Suzuki, the stator is Wye-wound.
It's a three-phase alternator and all of the three phases join together
at a neutral point that isn't connected to the stator frame.
|
No it is a Yamaha XV750 - as subject - or is that what you meant?
:-)
Chris D
|
In other words, it's a Y-wound stator with floating neutral. If you
looked at an electrical schematic drawing of the stator, it would look
like a Mercedes Benz star emblem with curly legs indicated the
windings.
Each of the output phases goes out and through the diodes of the
rectifier regulator before returning to the next phase.
Since you do not have any three phase motors on board your motorcycle,
and you don't use unrectified alternating current directly from the
stator, it does not matter which wire is soldered to each pigtail from
the stator.
If you did have a three phase motor (like the flap actuator on some jet
planes) and you crossed up any two wires, the motor would run backwards.
|
TIA
Chris D
|
|