Author Topic: Very low on power  (Read 10141 times)

Prophet Of Doom

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Re: Very low on power
« Reply #60 on: July 30, 2013, 11:08:12 PM »
I have a R/R, but no stator sorry.

4.5, 5.5 VAC out of the stator seems very unusual.  Are you sure it isn't 45, 55?

nzvision

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Re: Very low on power
« Reply #61 on: July 30, 2013, 11:36:07 PM »
ah. sorry roro.  got my wires crossed.   :-[
please start, please start.  Yippeee I won the lottery. my vision started.

Rick G

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Re: Very low on power
« Reply #62 on: July 31, 2013, 02:56:28 AM »
55 to 60 vac is fairly normal for a vision , the fact that there is a differance between legs concerns me.
Rick G
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'82.5 Yamaha XZ550 RJ  Vision,
'90 Suzuki VX800, 1990 Suzuki DR350.
'74  XL350   Honda , 77 XL350 Honda, 78 XL350 Honda, '82 XT 200 Yamaha, '67 Yamaha YG1TK, 80cc trail bike

Rikugun

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Re: Very low on power
« Reply #63 on: July 31, 2013, 08:08:50 AM »
To be a complete test checking all three phases there should be three values. Consider the wires A, B and C. Test sequence is:
red lead to A, black lead to B
red lead to A, black lead to C
red lead to B, black lead to C

The values should be the same (or very close) at the same RPM. Did you read the manual that came with the multi-meter? If not, do so and retest. Let us know what you get. I just want to make sure you are using the correct scale and interpreting the values correctly.  :) Having said that, given the voltage at the battery when running and revving, these low values very well may be valid and the stator is fried.
« Last Edit: July 31, 2013, 08:24:56 AM by Rikugun »
It is far better to grasp the universe as it really is then to persist in delusion, however satisfying or reassuring.  Carl Sagan

pinholenz

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Re: Very low on power
« Reply #64 on: July 31, 2013, 06:36:44 PM »
Identical readings on all all 3 phases would be nice... But IMHO not essential. One of the things that I noticed when I got my bike is that the previous service mechanic had disconnected one phase from my stator. I am told that this was regarded as a possible solution for the  R/R overheating by the it having to shunt too much voltage to the frame....?

Uneven voltage from the stator (at identical revs) indicates a problem with the stator, but not that it is completely fried  - yet ... especially if you are getting in the region of 50VAC.

I suggest you also do the diode test for the R/R as outlined in the Electrosport pdf.

http://www.electrosport.com/technical-resources/library/diagnosis/pdf/diode-testing-guide.pdf

Only one '82.5  eXtreme Zen 550

 

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