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Voltage regulator - Senda does not turn over more than 8 thousand

Michu7563 6654 9
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16343833
    Michu7563
    Level 8  
    Hello!
    I have Derbi Sende X-treme SM from 2005. The problem looks like this. When I realized that Senda was not charging my battery, I gave it to an electrician. He said it was the regulator's fault. When he did everything to me, everything worked with electricity. Only that the mechanics are worse because the senda did not want to spin higher than 6-8 thousand. Where, before giving it to him, she normally shot 14,000. I drove for a while, but because it was a 2-stroke, it was impossible to ride :( I noticed that when I unplug this voltage regulator senda again turns normally up to 14,000 :) only that the lights, charging, tachometer, etc. do not work. When I connect, everything from the electrics works, but it does not go into the highest speed :( And even if you hold her on those 6-8 thousand, it breaks so strangely as if she lost the spark. I went to the same electrician and he told me that everything is well done for him here and he doesn't know why. By the way, I measured the charging voltage and it turned out that it is 12.6 V without load, and from what I read, the correct one is from 13.8 to 14.6 V. Is it the fault of the regulator that it is so low or the stator. Although I do not think it is from the stator because then the lights would not shine well. I am asking for help because I don't have the strength to do it anymore. Thanks for all the answers.
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  • #2 16344064
    paweld69
    Level 28  
    Has the regulator been replaced with the same one?
  • #3 16346275
    Michu7563
    Level 8  
    It seems to me that it probably was not changed at all, because I did not receive any confirmation in the form of e.g. a receipt. The currently established regulator is Guilera 14412020. It was probably serially mounted for send.
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  • Helpful post
    #4 16348457
    paweld69
    Level 28  
    Michu7563 wrote:
    The currently established regulator is Guilera 14412020. It was probably serially mounted for send.
    There are several regulators installed in the senda, depending on the equipment and model. It seems that the generator loads the engine so much that it cannot exceed the average (6,000) revolutions. When the generator is heavily loaded, the ignition may shift and the engine may not reach normal parameters (revolutions). The disadvantages should definitely be found on the side of the electrics. I recommend a motorcycle electrician.
  • #5 16348481
    Michu7563
    Level 8  
    The problem is that there are too many motorcycle electricians in my city. And when you find it, you don't know it very well.
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  • #6 16399168
    Michu7563
    Level 8  
    Senda is at the electrician's. The electrician changed the ignition from the rieju and continues as it did, also it is not to blame. According to the electrician, everything is generally well connected. He downloaded the wiring diagram. He told me that he had already fooled himself by sende. So what else could be wrong there? Nwm maybe some cable is frayed, tarnished or something?
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  • #7 16400609
    paweld69
    Level 28  
    You need to check what is happening with the spark above 8,000 is there what it should be (advance angles), whether there are no ignitions (strobe lamp needed)
  • #8 16408379
    Michu7563
    Level 8  
    Senda came back from the electrician and it's worse than it was. Now the maximum speed is 4000 and the lights in the front are not working now.
  • #9 16408640
    BANANvanDYK
    Level 42  
    Derbi with Piaggio engine? Did you have a factory-fitted ignition Ducati Energia or Langfang Kokusan?
    Michu7563 wrote:
    Electrician switched ignition from rieju

    They have an AM6 motor - the stator, despite some differences in design, electrically fits, but the magnet wheel does not physically fit.
    Possible scenarios:
    1. Ignition spark is too weak with alternator load. It should be checked with the alternator winding loaded (yellow wire) only with H4 bulb on two filaments (total> 85W).
    2. The fault is due to mechanical reasons (wrong mixture composition -> influence on the reliability of ignition with a weak spark).
    3. Controller damaged, battery voltage is withdrawn.
    In any case, it would be worth checking the ignition advance angle with a strobe lamp and the length of the spark.
  • #10 16409167
    Michu7563
    Level 8  
    EBS engine ignition ducati energy

Topic summary

The discussion revolves around a 2005 Derbi Sende X-treme SM experiencing issues with its voltage regulator and engine performance. The user reports that after an electrician replaced the voltage regulator with a Guilera 14412020, the bike fails to exceed 6-8,000 RPM, down from a previous maximum of 14,000 RPM. When the regulator is disconnected, the engine performs normally but electrical components like lights and the tachometer do not function. Responses suggest checking the ignition system, including spark strength and advance angles, as well as potential mechanical issues or wiring faults. The user expresses frustration with the lack of reliable motorcycle electricians in their area and notes that subsequent attempts to fix the bike have worsened the situation, with the maximum speed dropping to 4,000 RPM and additional electrical failures.
Summary generated by the language model.
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