Coolster 3150 dx-2 sparking

Qmarty · 03-25-2020, 12:57 PM

I just replaced stator/magneto, ign coil, cdi box and spark plug on my sons Coolster 3150 dx-2. Now when I start it it is sparking from the engine to a bolt that holds the foot rest on. Does anyone know what is causing this issue? Ps, I took a short video on it sparking but I’m new to this website and I don’t know how to add a video. TIA.

FLASHLIGHTBOY · 03-31-2020, 03:19 PM

spark from a bolt to the foot peg.... sounds like a grounding effect... not a spark like from the firing system... check your ground system.. there should be a ground wire from your motor. to the battery or frame ground.. spark from engine to bolt??? does it run.???

Qmarty · 04-03-2020, 11:30 PM

The only ground I can find on it comes from one side of the starter. It’s a black wire and a smaller green wire that connect to a piece of what looks like brass. The black wire leads back the the neg on battery. The green I think is for the headlights. All connections look good on both sides of black wire. It’ll run ok for maybe 10-30 sec then quit. I fried voltage reg and cdi. Putting new ones on tomorrow. A friend said dielectric grease on plug should stop the sparking on bolt but that’s more of a bandaid not a fix right?
This wheeler hasn’t ran right or at all for 6 months.��

Qmarty · 04-03-2020, 11:31 PM

Can I post videos on here?

Dusman · 04-03-2020, 11:45 PM

Yes sir. Post away!
It sounds like a grounding problem. The green wires on most Chinese ATVs and motorcycles are a ground wire.

03-25-2020, 12:57 PM	#1
Qmarty Join Date: Mar 2020 Posts: 3	Coolster 3150 dx-2 sparking I just replaced stator/magneto, ign coil, cdi box and spark plug on my sons Coolster 3150 dx-2. Now when I start it it is sparking from the engine to a bolt that holds the foot rest on. Does anyone know what is causing this issue? Ps, I took a short video on it sparking but I’m new to this website and I don’t know how to add a video. TIA.
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03-31-2020, 03:19 PM	#2
FLASHLIGHTBOY Join Date: May 2009 Location: SASKATOON Posts: 1,161	spark spark from a bolt to the foot peg.... sounds like a grounding effect... not a spark like from the firing system... check your ground system.. there should be a ground wire from your motor. to the battery or frame ground.. spark from engine to bolt??? does it run.??? __________________ DEALER FOR ZSTAR & GIO PRODUCTS, TAOTAO ABIBABA ATV ETC
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04-03-2020, 11:30 PM	#3
Qmarty Join Date: Mar 2020 Posts: 3	The only ground I can find on it comes from one side of the starter. It’s a black wire and a smaller green wire that connect to a piece of what looks like brass. The black wire leads back the the neg on battery. The green I think is for the headlights. All connections look good on both sides of black wire. It’ll run ok for maybe 10-30 sec then quit. I fried voltage reg and cdi. Putting new ones on tomorrow. A friend said dielectric grease on plug should stop the sparking on bolt but that’s more of a bandaid not a fix right? This wheeler hasn’t ran right or at all for 6 months.��
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04-03-2020, 11:31 PM	#4
Qmarty Join Date: Mar 2020 Posts: 3	Can I post videos on here?
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04-03-2020, 11:45 PM	#5
Dusman Join Date: Jan 2018 Location: NC Posts: 215	Yes sir. Post away! It sounds like a grounding problem. The green wires on most Chinese ATVs and motorcycles are a ground wire.
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