- Joined
- Apr 3, 2009
- Messages
- 33
- Location
- Peterborough
Hi All,
After having my RSV cut out and die on the way to donnington, due to the battery not charging, I've been trying to diagnose the cause of the fault.
I've followed the excellent guide here:
www.motorcycleinfo.co.uk/resources/6795/assets/documents/Motorcycle_Elec_Fault_Finding_Chart.pdf
And all signs point to a dodgy stator, I've posted the results at the bottom of this post as they look very weird to me.
I'm looking for some advice on how to proceed, should I take a look at the stator, or is there some other stuff I should check first, should I just take it to a specialist (who could also look at the now clunky sprag).
Thanks in advance
Mike
Switch the multimeter to DC Volts (DCV or Vdc) Switch the range to 20 or 50 V. Connect the multimeter-leads to the battery-terminals. Start and rev the engine up to 2500 rpm. Check the battery-voltage
Showing 12.4 V
Count the # of different wire-COLOURS emerging from the RR. If there's a yellow wire on a Yamaha RR, don't count it (it is a special output-wire for switching the lights on and off)
4 or less
If showing 4 or less...
You've got a permanent magnet alternator system. Let the engine idle, and
connect the black multimeter-lead up to the battery(+). Connect the red
multimeter-lead up to the red (or white-red = Kawasaki) output wire of the RR. Leave the RR connected up to the bike. Check the reading on the meter. Leave
the engine idling !
Showing -0.44 V
If less than 0.2 V...
Connect the red multimeter-lead up to the battery(-). Connect the black
multimeter-lead up to the negative output of the RR (Honda : Green, Suzuki :
Black-white, Yamaha : Black, Kawasaki : black, other brands normally use a
black wire). If you can't find a negative output-wire, then the casing of the RR is normally the negative lead to the frame. Check the reading on the meter. Leave the engine idling !
Showing -11.36 V
If less than 0.2 V...
Stop the engine. Disconnect the wires emerging from the stator. These
are usually three yellow (or white = Yamaha) wires. Switch the
multimeter to Ohms, the lowest range on the meter. Measure the
resistance between all three wires coming from the stator, so you need
to take three readings.
Accuracy not good enough on multi meter, but would estimate 3 Ohms - Guide says stator is at fault
Connect one of the multimeter-leads up to one of the three yellow (or white = Yamaha) wires. Connect the other multimeter-lead up to the engine-casing. Check the reading on the meter. Make sure the connection to the casing is a good one
Virtually no resistance on any of them - Guide says stator is at fault
After having my RSV cut out and die on the way to donnington, due to the battery not charging, I've been trying to diagnose the cause of the fault.
I've followed the excellent guide here:
www.motorcycleinfo.co.uk/resources/6795/assets/documents/Motorcycle_Elec_Fault_Finding_Chart.pdf
And all signs point to a dodgy stator, I've posted the results at the bottom of this post as they look very weird to me.
I'm looking for some advice on how to proceed, should I take a look at the stator, or is there some other stuff I should check first, should I just take it to a specialist (who could also look at the now clunky sprag).
Thanks in advance
Mike
Switch the multimeter to DC Volts (DCV or Vdc) Switch the range to 20 or 50 V. Connect the multimeter-leads to the battery-terminals. Start and rev the engine up to 2500 rpm. Check the battery-voltage
Showing 12.4 V
Count the # of different wire-COLOURS emerging from the RR. If there's a yellow wire on a Yamaha RR, don't count it (it is a special output-wire for switching the lights on and off)
4 or less
If showing 4 or less...
You've got a permanent magnet alternator system. Let the engine idle, and
connect the black multimeter-lead up to the battery(+). Connect the red
multimeter-lead up to the red (or white-red = Kawasaki) output wire of the RR. Leave the RR connected up to the bike. Check the reading on the meter. Leave
the engine idling !
Showing -0.44 V
If less than 0.2 V...
Connect the red multimeter-lead up to the battery(-). Connect the black
multimeter-lead up to the negative output of the RR (Honda : Green, Suzuki :
Black-white, Yamaha : Black, Kawasaki : black, other brands normally use a
black wire). If you can't find a negative output-wire, then the casing of the RR is normally the negative lead to the frame. Check the reading on the meter. Leave the engine idling !
Showing -11.36 V
If less than 0.2 V...
Stop the engine. Disconnect the wires emerging from the stator. These
are usually three yellow (or white = Yamaha) wires. Switch the
multimeter to Ohms, the lowest range on the meter. Measure the
resistance between all three wires coming from the stator, so you need
to take three readings.
Accuracy not good enough on multi meter, but would estimate 3 Ohms - Guide says stator is at fault
Connect one of the multimeter-leads up to one of the three yellow (or white = Yamaha) wires. Connect the other multimeter-lead up to the engine-casing. Check the reading on the meter. Make sure the connection to the casing is a good one
Virtually no resistance on any of them - Guide says stator is at fault
