570 e f i failure

6v AC from the alternator sounds way too low. Can't find any test measurements or specs for the alternator stator in the service manual but I would think you should be getting at least 15-20v between any 2 of the 3 yellow wires at tickover, much more when the engine is revved. With the engine stopped and the alternator disconnected you should have a resistive continuity between any 2 of the 3 yellow wires. Again, no specs in the manual but I would guess somewhere between 1-5 Ohms, but this is a guess based on tests from stators on other bikes. You should not have a full short (0 Ohms) between any 2 of the wires and NO continuity at all between any 1 wire and earth/ground. I'll try and get some readings from my bike.

thanks that a great help
where in yorkshire are you
i am brough just out side hull
rtegards roger

rk570 said:

thanks that a great help
where in yorkshire are you
i am brough just out side hull
rtegards roger

Click to expand...

just done another test
the ohms are 0.6 between any 2 wires [they are black not yellow ],
eng at tick over 21 v must have got it wrong before ,not pushed probes in right

rk570 said:

rk570 said:

thanks that a great help
where in yorkshire are you
i am brough just out side hull
rtegards roger

Click to expand...

just done another test
the ohms are 0.6 between any 2 wires [they are black not yellow ],
eng at tick over 21 v must have got it wrong before ,not pushed probes in right

Click to expand...

Not had a chance to test mine yet but those readings sound OK to me. The 21v should increase when revved. The fact that you got the same resistance readings across all the coils is a good sign. So it's looking like the reg/rec may be suspect, good AC voltage in, poor DC out.

I'm in Sheffield, very handy for rides in the Peak District.

pegscraper said:

rk570 said:

rk570 said:

thanks that a great help
where in yorkshire are you
i am brough just out side hull
rtegards roger

Click to expand...

just done another test
the ohms are 0.6 between any 2 wires [they are black not yellow ],
eng at tick over 21 v must have got it wrong before ,not pushed probes in right

Click to expand...

Not had a chance to test mine yet but those readings sound OK to me. The 21v should increase when revved. The fact that you got the same resistance readings across all the coils is a good sign. So it's looking like the reg/rec may be suspect, good AC voltage in, poor DC out.

I'm in Sheffield, very handy for rides in the Peak District.

Click to expand...

thanks for that .that,s what i am thinking ,its the r and r
if you get chance to get readings off yours that would be great [the r and r and the generator ]

we ride North Yorkshire and have done one ride in peaks ,if you fancy good day out in North Yorkshire let me know .
roger

:bounce: :bounce3: bike fixed broken wire black white from r and r ,the 5 sec run time was the roll over sensor ,i had taken battery box out did not know sensor was on bottom it thought bike was on its side .
thanks pegscraper for your input
regards Roger. :cheers:

That's great news, especially as you didn't have to fork out for any new parts!

Just out of interest, had the wire broken where the loom passes between the frame and rear shock?
Some people on here have had similar problems in that area. I wrapped the loom in a piece of old inner tube to give it a bit more protection.

pegscraper said:

That's great news, especially as you didn't have to fork out for any new parts!

Just out of interest, had the wire broken where the loom passes between the frame and rear shock?
Some people on here have had similar problems in that area. I wrapped the loom in a piece of old inner tube to give it a bit more protection.

Click to expand...

yes right next to shock, very tight there ,good idea with inner tube , putting the loom back in under the battery was hard no room for error .
thanks again Roger