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How can I fix my Gilera dna 50 not charging the battery?How can I fix my Gilera dna 50 not charging the battery. I have tested the electrical charging system using the haynes manual and the altenator is putting out the 30v which means it is working. The is no current leakage in the circuit but when testing the regulator/rectifier there is no DC charging voltage which should be 13v. I have replaced the voltage regulator 5 times and still no success. I have now tested the voltage regulator at the socket of the regulator, it is getting 30v directly from the altenator yet it is not putting out the 13v through any of the terminals, it doesn't seem to make much sense, it is getting the 30v directly so it should be doing its job and putting out a regulated 13v somewhere???
My clocks have also become strange, they used to boot up instantly when turning the ignition however they now take several seconds to load up after turning the key. They also, (about 1 in every 10 startups) boot up but then the clock display just starts counting up, the bike will start but there is no speedometer or rev counter. The only way to reset it is to disconnect the battery under the seat. If you turn off the ignition they still stay on, you cannot start the bike though which is ok.
I think both of theses problems started near the same time, COULD IT BE THAT THE FAULTY CLOCKS ARE PREVENTING THE SYSTEM CHARGING?
Any help would be much appreciated, thanks.
Steve September 2006
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Click here if you can answer this question |
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Juan. The only voltage across the battery is what ever is in it after using the battery charger. It is about 12.5v, If the charging system was working,when the engine is reving at about 3000rpm the voltage should read 13v but this is not happening. There is no charging voltage of 13v in the circuit nor is there any charging current which should be 1.5amps. Adam, the earth connection is good otherwise none of the other electrics would be working. Adam, there are several wires coming directly from the altenator however the haynes manual tells you to check only one of them along with the earth wire, doing this you get 30v AC at 3000rpm, then coming out of the voltage regulator there is nothing anywhere. Could it be that another one of these wires from the altenator is necessary to make the regulator work and could be disconected somewhere?
Steve October 2006 |
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i thought of something else to check mate,try the earth lead to the battery is in good condition and secure at both ends where it is attached to the frame and also the battery end,as for the clocks still being on after the ignition is turned off i would suspect either a faulty ignition switch or possibly a relay that has got water in it that is making them light up after you have turned it off,let me know what you suss out .
adam bike doctor. October 2006 |
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>>COULD IT BE THAT THE FAULTY CLOCKS ARE PREVENTING THE SYSTEM CHARGING?
Unlikely as a direct consequence but it might point to a common cause.
30v AC across the charging coil (assuming that's what you are referring to) suggests that it has no load.
What is the voltage across the battery under a reasonable engine speed?
Juan Skinner October 2006 |
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Thanks, adam. I am looking out for a cheap set of clocks to see if that solves it, if not I will sell them on again. I am still baffeled though that the regulator isn't doing anything when putting 30v AC into it via the terminal, shouldn't it be putting out a regulated voltage somewhere? By checking it this way I thought that anything on the bike could not affect it, be it faulty clocks or a nipped wire.
Steve October 2006 |
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sounds like a sh*t of a job,i would check the tracks on the circuit board for the clocks mate i have had them corrode away before and it has caused similar probs to what you have ok,adam
adam bike doctor October 2006 |
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