fastbob Posted March 7, 2020 Share Posted March 7, 2020 Turned the engine on. Prior to doing so battery reading 12.5voltsWhilst Erving at 6000 revs reads at 11.95 volts and I watch the voltage drop. Over roughly one minute dropped to 11.9Also did not start easily, took a half a breath longer than it should have. Not good . Quote Link to comment Share on other sites More sharing options...
James in Brum Posted March 7, 2020 Author Share Posted March 7, 2020 A-b b-c and a-c on the yellows all under one ohm, taking account of the multi metre leads there is about 0.3ohms in the system only a little more than the leads register. The next set of instructions say to measure from the connector to the new terminal of the battery. If I assume that means the live (brown wire, from the connector to the battery negative terminal I get 0.8ohms. The instructions said I should not get anything? Quote Link to comment Share on other sites More sharing options...
James in Brum Posted March 7, 2020 Author Share Posted March 7, 2020 What does tab to tab mean in the latter test? Quote Link to comment Share on other sites More sharing options...
Stu Posted March 7, 2020 Share Posted March 7, 2020 A-b b-c and a-c on the yellows all under one ohm, taking account of the multi metre leads there is about 0.3ohms in the system only a little more than the leads register. The next set of instructions say to measure from the connector to the new terminal of the battery. If I assume that means the live (brown wire, from the connector to the battery negative terminal I get 0.8ohms. The instructions said I should not get anything? No negative on the battery Quote Link to comment Share on other sites More sharing options...
Stu Posted March 7, 2020 Share Posted March 7, 2020 What does tab to tab mean in the latter test? Tab to tab is the tabs within the connector the yellow connectors Quote Link to comment Share on other sites More sharing options...
James in Brum Posted March 7, 2020 Author Share Posted March 7, 2020 Just to be clear ‘a’ to neg battery terminal?If so do I do a and b and c to beg battery terminal? Quote Link to comment Share on other sites More sharing options...
Stu Posted March 7, 2020 Share Posted March 7, 2020 Yes and yes Quote Link to comment Share on other sites More sharing options...
James in Brum Posted March 7, 2020 Author Share Posted March 7, 2020 No reading at all across a to the negative battery terminal same for b and c. As in it didn’t register at all, no change on the multimeter screen as if there was no circuit at all. All of this with ignition off. Quote Link to comment Share on other sites More sharing options...
Stu Posted March 7, 2020 Share Posted March 7, 2020 No reading at all across a to the negative battery terminal same for b and c. As in it didn’t register at all, no change on the multimeter screen as if there was no circuit at all. All of this with ignition off. Then that should be fine as it's not running to ground which is bad Just check voltage now Quote Link to comment Share on other sites More sharing options...
James in Brum Posted March 7, 2020 Author Share Posted March 7, 2020 No reading at all across a to the negative battery terminal same for b and c. As in it didn’t register at all, no change on the multimeter screen as if there was no circuit at all. All of this with ignition off. If so will check in half an hour Quote Link to comment Share on other sites More sharing options...
James in Brum Posted March 7, 2020 Author Share Posted March 7, 2020 One of my posts didn’t post. The one I meant to quote was, the check with the engine running is that a-b a-c b-c again but with engine running? Quote Link to comment Share on other sites More sharing options...
Stu Posted March 7, 2020 Share Posted March 7, 2020 One of my posts didn’t post. The one I meant to quote was, the check with the engine running is that a-b a-c b-c again but with engine running? Yes that's right but remember it needs to be on ac as its alternating current and you should have readings of about 75v Quote Link to comment Share on other sites More sharing options...
James in Brum Posted March 7, 2020 Author Share Posted March 7, 2020 Thanks Stu. Will do that shortly. Quote Link to comment Share on other sites More sharing options...
James in Brum Posted March 7, 2020 Author Share Posted March 7, 2020 On this setting on multimeter I get 1.8 on a-b 1.3 on a-c and .6 on b-cI don’t know if I have the setting of the multi meter correct or if those figure mean something to you? Quote Link to comment Share on other sites More sharing options...
Stu Posted March 7, 2020 Share Posted March 7, 2020 On this setting on multimeter 0A14976C-FE3E-40BE-ABBD-58BA791BC2AF.jpegI get 1.8 on a-b 1.3 on a-c and .6 on b-cI don’t know if I have the setting of the multi meter correct or if those figure mean something to you? That's the right setting Those readings suggest the stator is toast Quote Link to comment Share on other sites More sharing options...
James in Brum Posted March 7, 2020 Author Share Posted March 7, 2020 Ah shit, so what does that mean. I need a new stator/second hand one or is it something that can be mended? Quote Link to comment Share on other sites More sharing options...
Stu Posted March 7, 2020 Share Posted March 7, 2020 You can get them re wound but not sure on the costSecondhand you never know what you're buying! Quote Link to comment Share on other sites More sharing options...
James in Brum Posted March 7, 2020 Author Share Posted March 7, 2020 Okay so £90 for a new one is the best way to go? Quote Link to comment Share on other sites More sharing options...
James in Brum Posted March 7, 2020 Author Share Posted March 7, 2020 Is there a way to be certain it’s the stator? Are we certain it is the stator? Quote Link to comment Share on other sites More sharing options...
Stu Posted March 7, 2020 Share Posted March 7, 2020 If it was me I would always buy new or re wound Quote Link to comment Share on other sites More sharing options...
Stu Posted March 7, 2020 Share Posted March 7, 2020 Is there a way to be certain it’s the stator? Are we certain it is the stator? If your testing is correct then with the bike running you should have around 75v at the terminals of the stator before going in tot he reg rec Your readings don't even make 4 volts Quote Link to comment Share on other sites More sharing options...
James in Brum Posted March 7, 2020 Author Share Posted March 7, 2020 Thank you [mention]Stu[/mention] Quote Link to comment Share on other sites More sharing options...
Stu Posted March 7, 2020 Share Posted March 7, 2020 If you are unsure feel free to Google on how to test a stator and a reg/rec and run the tests again There is some really good guides out there Quote Link to comment Share on other sites More sharing options...
Bender Posted March 7, 2020 Share Posted March 7, 2020 Just to rule out any problem with meter test it on 240v on your house, obvs don't kill yourself Quote Link to comment Share on other sites More sharing options...
dynax Posted March 7, 2020 Share Posted March 7, 2020 Quote Link to comment Share on other sites More sharing options...
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