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Dj49
| Posted on Tuesday, September 24, 2013 - 05:03 pm: |
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I have a 2001 buell blast that I bought a couple of months ago. I have replaced the battery. The problem is bike won't hold a charge. If I charge it full I have about 20 miles before the bike dies(first speedometer, then signals, lights, then engine). If I do stop and go in about 2 mile increments, the bike won't start by about the third or fourth time. In some research here I believe it Is the stator Or voltage regulator. Anyone know the impedance of the stator on this bike? Am I on the right track? |
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Reepicheep
| Posted on Wednesday, September 25, 2013 - 08:28 am: |
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Yes, you are on the right track. I don't know the stator impedance values off hand, I'd guess like 2 ohms pin to pin, and infinite ohms to ground. The voltage output test is more reliable anyway. Disconnect the stator plug, get the bike running and measure AC voltage coming out of the stator at a few different RPM's. It should be like 60 volts AC at high rpm. You could hook it to a 60 to 300 watt shop light if you want to test it under load, just make sure your jumpers are thick enough wire. |
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Dj49
| Posted on Wednesday, September 25, 2013 - 04:11 pm: |
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Thanks for the feedback. I pulled the stator plug and am getting 28 v output but 0 resistance. At about 2000 rpms battery remains at 12 v. I'm thinking this identifies the problem as the stator? |
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Reepicheep
| Posted on Friday, September 27, 2013 - 08:57 am: |
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28 volts sounds a little low for a good stator at high RPM, but it sounds high for a bad stator, if that makes sense. Where was the 0 ohm resistance reading? If it is pin to ground (which means winding to ground), then for sure its a bad stator. If it is pin to pin, then something like .6 for the stator winding resistance with another .3 or something for your probe leads is probably normalish (from guesses and memory). But it takes a pretty good meter to measure those low ohm resistances accurately. (Message edited by reepicheep on September 27, 2013) |
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Bluzm2
| Posted on Saturday, September 28, 2013 - 10:59 am: |
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Bill, the Blast stator is the same single phase unit as the rest of the old tubers. When testing it the output across the two leads at 2000 RPM should be in the 38-52 volt range. 28 volts is too low. Me thinks the stator is toast. Part # is- 29967-89C LSHD1 has them for $96.62. Last version I put in was a -89B, it had better wire retainers than the original 89A version. Not sure what they did for the C version. |
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Reepicheep
| Posted on Saturday, September 28, 2013 - 04:02 pm: |
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Cool! Thanks for the info Brad. I liked those simple one phase stators. |
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Dj49
| Posted on Monday, September 30, 2013 - 08:40 am: |
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Thank both of yous for the tips. It was pin to ground At 0. I have ordered a new stator hopefully get it this week while the weather is still good. Will replace and update as to issue being resolved. Thanks again |
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Reepicheep
| Posted on Monday, September 30, 2013 - 10:09 am: |
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Well, at least you know the problem. One more thing to check is to understand how your meter communicates "inifinite" ohms. Just to make sure that your "zero ohm" reading pin to ground was indeed 0 ohms (and not some confusing response from a cheap meter). Just set it to resistance, and touch the probes together, and see what it reads. That should be pretty much what you also see when you connect the probes to your dead stator (when it has failed in the "shorted to ground" mode, which it sounds like yours has). |
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