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Post by southbfd on May 20, 2012 22:59:36 GMT -6
Okay I have a Znen zn150t-b. It was running fine, then just out of the blue the scooter start blowing the main battery fuse. Every time I turn the key switch to the run position the fuse blows. I have checked the Key switch it is fine I checked continuity on the primary red wire from battery with fuse to chassis ground, Every time I turn on the key switch with the battery disconnected I get continuity tone, when I turn off the key switch the continuity tone stops. I have check the whole harness for shorts or melted and can not find any. I am wondering if it the CDI, Coil, Voltage Regulator or the Starter Silindo. Fun thing is I can hook everything up and disconnect the wire harness going to the dash the and continuity tone goes away. I have gone through and disconnected the different switches on the dash to see I could shut off the continuity tone and find a shorted switch but no such luck. I even checked the light bulbs. I could use any help on the matter, or any troubleshoot tips for different parts.
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Post by Alleyoop on May 20, 2012 23:10:14 GMT -6
What do you mean TONE, it could be the FLASHER
Alleyoop
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Post by southbfd on May 21, 2012 4:58:16 GMT -6
continuity tone and there no flashers on this bike.
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Doc's Anything Goes
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Post by tvnacman on May 21, 2012 5:18:23 GMT -6
You need to connect your meter, let it beep. Then start unplugging things till the tone goes away. Chinese flashers do go bad.
John
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Post by Bashan on May 21, 2012 9:12:23 GMT -6
Do you have a DC CDI? That would be the only way that could be involved, those are energized when you turn on the key. Can't be the coil, it gets it's juice pulsed from the CDI. It can't be the solenoid, it's not connected to the system until you pull in the brake, it wouldn't blow with the key. I don't see how it could be the R/R but you could check it by unplugging it and turning on the key, if it still blows that's not it. Do the same with the wire harness to the dash and see if the fuse pops. Rich
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Post by southbfd on May 21, 2012 10:29:33 GMT -6
If I plug everything in the continuity test beeps but if I unplug the dash harness it stops beeping. SO I am guess it is in the dash. Is that correct
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Post by Alleyoop on May 21, 2012 10:34:22 GMT -6
The Flasher (TURN SIGNAL FLASHER) Are you saying the bike does not have any turn signals?
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Post by southbfd on May 21, 2012 18:05:00 GMT -6
I have been thru the dash wiring and can not find a short. I have checked the key switch it is good. This scooter has the remote start and alarm on it as well. With everything plugged in and the contunity test hooked to the 12volt red with fuse and the other lead on chassie ground, I turn the switch to run and I get tone, turn it off no tone. I need some help
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Post by Bashan on May 22, 2012 4:33:33 GMT -6
It is normal to have a continuity tone from the red fuse lead to ground with the switch on. It's also normal for the tone to go off with the switch off. The switch connects the red wire to the black wire off of the ignition switch and it grounds through multiple circuits. The fact that the tone stops when you unplug the dash harness is a little bizarre, there should still be enough grounds to have a continuity tone. I'd put a fuse in, unplug the dash harness, and turn on the key. If the fuse blows the problem is not in the dash. You have a security system, my condolences. They are infamous for causing a host of problems. Try the dash test first and let us know what happens. Rich
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Post by southbfd on May 23, 2012 9:52:21 GMT -6
Okay here is the latest. I plugged everything back in and reconnected the battery but disconnected the main Dash harness. Turn on the key and the fuse did not blow so I am to guess that the short is in the Dash strd. HHMMMMM
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Post by richjfurber on May 31, 2012 15:00:17 GMT -6
I,m having the exact problem (short) and have done the same test. I,ve opened the wire loam, following the red wire from the battery to the ignition sw. With the key powered on the black wire on the sw is energized and the fuse blows.
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Post by richjfurber on May 31, 2012 15:09:08 GMT -6
What i,m having trouble understanding is when i followed the black wire down seven inches into the harness the black wire is joined with a factory connector into a green wire. The Green wire is a ground wire for the circuit, what,s this?
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Post by Alleyoop on May 31, 2012 15:29:59 GMT -6
Well the Black wire usually carries 12VDC and if it is going to a GROUND wire NOT GOOD.
But get your VOLT METER out and check the Black wire and see if it carries 12VDC.
You have a short so start checking wires that are close to each other they may have fraed and are making contact.
SouthFlds problem was the headlight high beam switch black and white wires were rubbing and wore the insulation off the wires and they were touching.
Alleyoop
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Post by Bashan on May 31, 2012 15:38:32 GMT -6
If it's dark green it's a power wire and not a ground. Rich
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..BAD TO THE BONE..
