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Old 08-31-2023, 11:38 AM   #1
HotRod77   HotRod77 is offline
 
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Oh No Venom Ghost Cruiser 250cc not starting

Hello,
I have a Venom Ghost Cruiser 250cc, also known as a DongFang with 126 miles. I am having trouble getting the bike to start. Engine turns over with no problems and battery is charged. I have compression and fuel but I am not getting spark. Spark plug is new NGK. Checked the coil with a meter on ohms and reading was okay, but swapped with a spare coil and same result. I have also swapped out the 6 pin CDI box with no result. The stator tested 159 ohms across the ignition circuit, and 0.4 ohms across the two wires that charge the battery. I have followed all of the wires and found no breaks, cuts or burns in the wires. Fuse is new. All lights and switches on the handlebars function as they should.

What else gives the spark plug spark?

Also, is there any wiring schematic for this bike?

Thanks for any help





Update:
Bypassed the kill switch
Bypassed the switch on the clutch lever
Installed new stator
Installed 3rd ignition coil
Installed 3rd CDI box
kickstand in the up position, (does not have a switch on kickstand)
ensured battery is fully charged, also have charger on battery while cranking
Still no spark



Last edited by HotRod77; 09-06-2023 at 06:47 PM. Reason: Forgot to add second question.
 
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Old 08-31-2023, 11:49 AM   #2
letsride   letsride is offline
 
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"What else gives the spark plug spark?"

I know this may be slilly but, The kill switch and if there is a kick stand safety switch.
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Old 08-31-2023, 08:53 PM   #3
Barnone   Barnone is offline
 
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This place has Dong Fang owners manual/ wiring diagrams
Recommended for the following models
DF250RTS
DF250RTR
DF205RTG
DF250RTD
DF250RTF
Venom X22R 250cc
Ghost 250cc
Retro / Sportster 250cc
Villain Harley 250cc
CXR 250cc RTS


https://www.vaderparts.com/products/...lectronic-copy


 
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Old 09-06-2023, 06:30 PM   #4
HotRod77   HotRod77 is offline
 
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Quote:
Originally Posted by letsride View Post
"What else gives the spark plug spark?"

I know this may be slilly but, The kill switch and if there is a kick stand safety switch.
No safety switch on kick stand. kick stand is currently up while starting. Kill switch has been disconnected to rule out possibility of being bad


 
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Old 09-06-2023, 10:22 PM   #5
Barnone   Barnone is offline
 
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So this bike has 126 miles on it so it has run. What has happened to the bike since its last run?
I have an owner's manual so I will look at the wiring diagram to see if I can see where there might be a problem.


 
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Old 09-07-2023, 08:50 AM   #6
JerryHawk250   JerryHawk250 is offline
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Check to make sure you are getting power to the CDI and continuity from the CDI to coil. Make sure coil and CDI is grounded properly. It's possible that you might have a bad ignition switch or power not getting to ignition switch. You will have a 6 pin DC CDI.
https://offroadofficial.com/6-pin-cdi-wiring-diagram/
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Old 09-07-2023, 10:08 AM   #7
HotRod77   HotRod77 is offline
 
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Quote:
Originally Posted by JerryHawk250 View Post
Check to make sure you are getting power to the CDI and continuity from the CDI to coil. Make sure coil and CDI is grounded properly. It's possible that you might have a bad ignition switch or power not getting to ignition switch. You will have a 6 pin DC CDI.
https://offroadofficial.com/6-pin-cdi-wiring-diagram/


I have thrown the key switch out, and jumper two of the four wires to give the motorcycle power. Red and black power on the motorcycle, the green and black with yellow stripe are loose. I am not sure what the black and yellow stripe are suppose to go to, but I have tried both ground and 12 volts with no results. I have 12 volts at the CDI. There are two wires on the coil, red with white stripe goes to the kill switch, and green is grounded to the mounting bolt at the coil. Disconnected the kill switch and left it out of the bike. Having a hard time trying to figure out what gives the coil power. If one wire is grounded and the other goes to the kill switch, where does it get power?


 
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Old 09-07-2023, 10:11 AM   #8
HotRod77   HotRod77 is offline
 
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Quote:
Originally Posted by JerryHawk250 View Post
Check to make sure you are getting power to the CDI and continuity from the CDI to coil. Make sure coil and CDI is grounded properly. It's possible that you might have a bad ignition switch or power not getting to ignition switch. You will have a 6 pin DC CDI.
https://offroadofficial.com/6-pin-cdi-wiring-diagram/


CDI is a 6 wire, but only uses 5. It has 12 volts on one black wire coming into it, 2 wires go to stator, 1 wire to ground, and I dont recall where the last wire goes to. The coil has two wires on it, one that is grounded, and the other to the kill switch. I am having a hard time understanding where the coil gets its power from.


 
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Old 09-07-2023, 10:17 AM   #9
JerryHawk250   JerryHawk250 is offline
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Quote:
Originally Posted by HotRod77 View Post
CDI is a 6 wire, but only uses 5. It has 12 volts on one black wire coming into it, 2 wires go to stator, 1 wire to ground, and I dont recall where the last wire goes to. The coil has two wires on it, one that is grounded, and the other to the kill switch. I am having a hard time understanding where the coil gets its power from.
The coil gets it's power from the CDI. Yellow wire on the diagram. My X22R and Venom Ghost only use 5 wires too.
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Old 09-07-2023, 10:44 AM   #10
HotRod77   HotRod77 is offline
 
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Quote:
Originally Posted by JerryHawk250 View Post
The coil gets it's power from the CDI. Yellow wire on the diagram. My X22R and Venom Ghost only use 5 wires too.


I do not have a yellow wire on the coil. It only has a red w/white stripe and ground wire on mounting bolt.


 
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Old 09-07-2023, 10:47 AM   #11
HotRod77   HotRod77 is offline
 
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Quote:
Originally Posted by hotrod77 View Post
i do not have a yellow wire on the coil. It only has a red w/white stripe and ground wire on mounting bolt.


 
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Old 09-07-2023, 10:52 AM   #12
JerryHawk250   JerryHawk250 is offline
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Quote:
Originally Posted by HotRod77 View Post
that red wire goes to cdi and not the kill switch. see the diagram for dc cdi. it show yellow, thats where that wire connects to.
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2023 Lifan Lycan 250 Chopper
2023 Venom Evader
2022 Lifan KPX250
2020 Kawasaki Vulcan S (Sold)
2004 Honda ST 1300
2016 Black Hawk 250 (sold)
Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster
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Old 09-07-2023, 10:54 AM   #13
JerryHawk250   JerryHawk250 is offline
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connect to the one marked ignition coil.
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2024 Linhai 300 ATV 4x4
2023 Lifan Lycan 250 Chopper
2023 Venom Evader
2022 Lifan KPX250
2020 Kawasaki Vulcan S (Sold)
2004 Honda ST 1300
2016 Black Hawk 250 (sold)
Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster
2016 Cazador180 XL
2014 Coolster150
JerryHawk250.com
My YouTube Channel


 
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Old 09-07-2023, 11:09 AM   #14
HotRod77   HotRod77 is offline
 
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Quote:
Originally Posted by JerryHawk250 View Post
connect to the one marked ignition coil.
I'll try that. Thanks


 
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Old 09-07-2023, 11:43 AM   #15
HotRod77   HotRod77 is offline
 
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Originally Posted by HotRod77 View Post
I'll try that. Thanks



Jumped a wire from cdi to coil, still has no spark. Swapped cdi and still no spark


 
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