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Post by mechanick on Aug 13, 2021 15:32:58 GMT -5
Hey there Scoot forum. I was given the task of making a 90CC Pantera ATV start working again after 15 years of sitting still. I have compression but no spark. I have tested the stator, ignition coil, battery, starter solenoid, spark plug, etc. and I am still not getting spark. It was working fine one day, then the next it was no longer working. I figured the CDI went bad so purchased a new one, but that didn't help. To top it all off I have no idea what year this is and finding a manual seems rather challenging as well. Anyone with any advice on where to go from here, i'd love to hear. Thank you all again for your help!
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Post by captincvmn on Aug 13, 2021 15:44:30 GMT -5
Check keyswitch, kill switch, unplug and replug all electrical connectors. Look for rodent damage to the wires if it sat that long.
Why was it sitting so long?
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Post by archi1491 on Aug 13, 2021 23:42:11 GMT -5
thanks for sharing....................
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Post by 90GTVert on Aug 14, 2021 6:55:39 GMT -5
You can check the kill wire on the CDI to see if it's getting a ground when it's supposed to be in run mode (key on, kill switch to run). What you should see is that the kill switch or key off will supply a ground to that wire to disable the ignition and when both are on/run the ground will not be present. The same would be true if there are any other safety features (with scoots an example would be a side stand switch that disables the ignition when the stand is down). Here is some ignition troubleshooting info. Check reluctor/pickup gap if you haven't. I have had a no start be that simple before. 49ccscoot.proboards.com/post/8068/thread |
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Post by repherence2 on Aug 15, 2021 12:09:03 GMT -5
let's narrow it down to "no spark" after checking everything.
in my experience of no spark:
1. the wire going to the coil was corroded/oxidized under the insulation. could not tell by looking at the wire. found out by trying to strip back insulation to install a new female spade connector. wire inside insulation was oxidized and broken under the insulation.
2. spark plug cap not properly engaged onto spark plug. some scooters use a cap that requires you to remove the nipple off the spark plug. the cap engages by a clip. over time, the steel clip can corrode and the cap no longer passes electricity properly to the plug. if you have a rubber plug cap, then you should be okay. it's a problem with the plastic plug caps.
3. last thing i can think of is Ground. battery grounded? coil grounded? engine grounded?
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