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Post by daniel50ccsunel on Mar 30, 2010 14:03:28 GMT -5
Hello, I am thanking I have a short in my electracel system. I have not been able to ride the last 3 weeks because of a gunshot to the finger but went out last weekend and the battery was dead and it would not even kick start. After jump starting I ran but the turn signals would not work. Today was the first day I was able to get back to driving it to work and at work I charged the battery for a hour and a half. I was hooking it back up and when hooking the second cable up it sparkes. There is nothing to my knollage that pulls current when the key is off, and everything works after the battery was charged. Is it normal to spark when hooking the battery up on a 50cc chinese scooter, and not just a little spark and that is it. It sparked enough that I thought I was hooking it up backwards, and no I did not.
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Post by tomcas on Mar 30, 2010 14:26:49 GMT -5
If you don't have an alarm, remote starter, and the key is off, then you should not be drawing any current off the battery. I'd suspect that the voltage regulator is a fault and your fuse is also blown. Don't ever jump start from a running vehicle and when replacing your voltage regulator always check to make sure your headlight bulbs and your headlight substitution resistor are working or else you may burn out the voltage regulator. Is it possible you reversed the jumper cables during jumping for a second by mistake?
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Post by daniel50ccsunel on Mar 30, 2010 14:35:58 GMT -5
I did not reverse the jumpercables but after it started I was going to let it run for a bit befor I unhooked them. It ran for about a 1.5 to 2 minutes and started smoking from the battery compartment. As soon as I unhooked the jumper cables it stoped smoking but nothing I felt was hot. I did see the caseing for the fuse had started to melt but the fuse was not blown or I do not know if it has started to melt before and I had not noticed it.
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Post by cruiser66 on Mar 30, 2010 14:58:20 GMT -5
If you were using a second battery to jump start, it is a good idea to unhook it as soon as the scoot starts. If you leave it hooked up, then the scoot's charging system will try to charge both the scoot battery and the jumper battery which could overload the scoot's system (the smoke you saw from the battery compartment). If your main fuse is the glass type, this could be a place that could overheat because of the poor contact in the original fuse holder causing the melting. Most dawgs use this style holder and plug in ATO fuse: www.delcity.net/store/12-Ga-Fuse-Holder/p_11176.a_1To check for battery drain while the scooter is stopped, you should use an ammeter hooked in series with the negative lead of the battery with the key OFF. If you have an alarm system installed, it should read only a few milliamps. Ideally zero with no alarm system. 66
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Post by qwertydude on Mar 30, 2010 18:45:37 GMT -5
If the jumping battery were any good I wouldn't worry about the charging system overloading as a good battery's voltage wouldn't put any strain on any charging system. If there was smoke then I would suspect a short somewhere else in the system.
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Post by tomcas on Mar 30, 2010 21:40:18 GMT -5
If you were using a second battery to jump start, it is a good idea to unhook it as soon as the scoot starts. If you leave it hooked up, then the scoot's charging system will try to charge both the scoot battery and the jumper battery which could overload the scoot's system (the smoke you saw from the battery compartment). I don't think this is possible. The reason is the charging coils can only put out so much current and the voltage regulator which functions by bleeding excess current would actually be under less load while under these conditions. If the battery used to jump the bike was in a running vehicle then that would be an entirely different story. In that case for instance a car could be generating say 14.5 volts and the zener diode in the bikes voltage regulator could be trying to dump all the excess current to get the voltage down to say 14 volts. The end result would be an overloaded and burnt out voltage regulator.
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Post by cruiser66 on Mar 31, 2010 0:13:02 GMT -5
If the jumping battery were any good I wouldn't worry about the charging system overloading as a good battery's voltage wouldn't put any strain on any charging system. If there was smoke then I would suspect a short somewhere else in the system. The OP said that the smoke stopped when he disconnected the jumper battery. He then said that no wires were hot but he did notice some melting around the main fuse holder. How would a short somewhere else in the system clear up when he removed the jumper battery? We have no idea how good the jumper battery was. If it was below the charging voltage of the scoot's regulator which is usually over 13 volts, then the scoot's system will try to charge both batteries. 66
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Post by qwertydude on Mar 31, 2010 1:10:52 GMT -5
That's why I said if the jumping battery were good. It's possible the jumping battery was low, a 10v car battery will still crank up these scooters but will present quite a load to the charging system. But I wouldn't jump my scooter with a bad battery down to 10v.
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Post by tomcas on Mar 31, 2010 7:43:04 GMT -5
By design a scooter charging system is ALWAYS generating it's maximum output and then bleeding the excess current to ground in order to maintain the proper voltage. This excess current is bleed off via the zener diode in the voltage regulator. It's not very efficient but it's cheap. The thing that really loads down the voltage regulator is when there is no load, such as a missing battery or burnt out headlight. Then the voltage regulator must dump a ALL of the current. So.... and extra battery, no matter how big and how low the state of charge is, will not overload the charging system.
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Post by daniel50ccsunel on Mar 31, 2010 8:42:39 GMT -5
Hello, Thanks for the info. The jumping battery was a solar battery in a truck puting out 14 to 16 volts, and the truck was not running.Yesterday evening as leaving work I complety hooked up the charged battery and the glass fuse in the battery compartment started glowing. I unhooked it and the fuse stoped glowing. I hooked the battery back up and started the scooter. The fuse got brighter as the scooter reved and finally blew. I then unhooked the neg battery cable and let it hang also left the fuse blown. I kick started the scooter and it ran and the turn signals would light up but not flash. I drove my 11 miles home. This morning left in same state of neg bat cable unhooked and fuse blown I started the scooter and went off to work. Not what I wanted to do but did not have time to work on it. I made it about 1 mile and was pulling up to a stop sign and as coasting to a stop sign the scooter died. It would not kick start and jumping the fuse and tuching the groung wire back up would not let it start off the battery as it did the evening befor. I replased the CDI with a spair one I had after getting the scooyer back home and it sounded like it would hit once in a while but still did not start but it might have been fludded from trying to start it befor and laying at about a 45deg angle on the way home. For now the scooter is at home so I can not check anything else untill about 5 this evening when I get off work. What do yall think could be the proublem now, please help for it is my main means of transpertation and LOVE riding it every day exp sence it is starting to get nice and my finger is finally healed enough to be able to ride again.
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Post by daniel50ccsunel on Mar 31, 2010 8:48:03 GMT -5
Also I do not have a alarm or remote start or anything else that would be pulling current off the battery when the key is off that I know of.
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Post by qwertydude on Mar 31, 2010 9:44:55 GMT -5
With all that shorting and heating going on I wouldn't be surprised if your stator went. If replacing the cdi doesn't work and you know the ignition coil is good then the only thing left is the stator. This is assuming kick starting only.
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Post by daniel50ccsunel on Mar 31, 2010 10:27:21 GMT -5
The starter cranks it just doesn't sound like it is fireing but once in a while. But this proublem came after the first proublem that I still dont know what that was.
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Post by tomcas on Mar 31, 2010 11:04:34 GMT -5
The starter cranks it just doesn't sound like it is fireing but once in a while. But this proublem came after the first proublem that I still dont know what that was. I agree, you have two separate problems and the last one doesn't seem to be electrical or spark related but a fuel problem. What amp fuse did you have in there that blew? When the fuse blew was the jumper battery still connected? Don't run the bike without the battery connected or else if the voltage regulator will blow if it hasn't done so already.
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Post by daniel50ccsunel on Mar 31, 2010 12:40:50 GMT -5
Ok this might be a dumb question but where is the voltage regulator and is there a way to test it? I do have a cheap volt meater from ACE but do not really know what settings to use so what setting to put it on would help also.
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Post by cruiser66 on Mar 31, 2010 13:01:22 GMT -5
Here is where it's located behind the headlights on my VIP50. It's the black heatsink thing with the white connector right in the middle of the picture. To check the operation of the regulator, measure the voltage across the battery terminals with the key turned off. Then start the scoot and measure the voltage again. It should be a minimum of .5 volts higher and rise even higher when you rev the engine. 66
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Post by tortoise on Mar 31, 2010 13:45:45 GMT -5
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