Fail to start

bonth123 · 06-18-2019, 08:08 PM

I am sorry if this has been answered somewhere else, but my searches didn't locate anything.

I did the upgrade with the Mikuni carb and 17T sprocket...when I did the carb it ran awesome, did the sprocket this evening and the bike won't start...no spark. I pulled the plug and it was black, so I dropped the main jet down from a 120 to a 110, and adjusted the mxture screw to 1 1/2 turns.

In the process of installing the sprocket it appears, after tearing everything apart, that I pinched a wire from the stator...the red/black lead. I have no idea if this could blow the CDI or coil, but the wire is intact, just damaged. I can splice it if needed, but until I find the cause of the missing spark I don't see a need.

The bike turns over great, lights all work...just no spark.

Any ideas of where to start? does this bike have a fuse block or even a main fuse other than the one on the battery lead ?

**JerryHawk250** · 06-18-2019, 08:24 PM

Check that you didn't acidently turn on the kill switch. You only have the one fuse.

flhellcat · 06-18-2019, 09:56 PM

Maybe check pins/sockets are seated in stator connectors. Jiggling wiring could have broken a connection.

I had unseated pins from the factory.

NzBrakelathes · 06-18-2019, 10:29 PM

Red / white or black is 75v AC to stator to power it
Blue white is Hall effect sensor
Either busted bigbig no go

bonth123 · 06-19-2019, 10:22 AM

Sooo...sounds like that little pinch killed it...guess I will splice that wire and make sure the pin connectors are all seated. Thanks for the information.

Megadan · 06-19-2019, 12:28 PM

Quote:

Originally Posted by bonth123

Sooo...sounds like that little pinch killed it...guess I will splice that wire and make sure the pin connectors are all seated. Thanks for the information.

It doesn't take much damage to cause a voltage drop, or increase resistance to a circuit. Something as simple as a kinked wire that broke internally can cause a CDI to missfire or lose enough power to stop functioning.

bonth123 · 06-19-2019, 06:14 PM

Thank you all for the responses...fixed the wire and all is good.

dpl096 · 06-19-2019, 08:28 PM

Quote:

Originally Posted by bonth123

Thank you all for the responses...fixed the wire and all is good.

Great news.....

kingofqueenz · 06-19-2019, 10:10 PM

Love stories like this - this forum keeps the band marching on.

Great success story and great forum ( especially for a newbie like me ).

Nicely done fellas

06-18-2019, 08:08 PM	#1
bonth123 Join Date: Jun 2019 Location: Central Washington Posts: 5	Fail to start I am sorry if this has been answered somewhere else, but my searches didn't locate anything. I did the upgrade with the Mikuni carb and 17T sprocket...when I did the carb it ran awesome, did the sprocket this evening and the bike won't start...no spark. I pulled the plug and it was black, so I dropped the main jet down from a 120 to a 110, and adjusted the mxture screw to 1 1/2 turns. In the process of installing the sprocket it appears, after tearing everything apart, that I pinched a wire from the stator...the red/black lead. I have no idea if this could blow the CDI or coil, but the wire is intact, just damaged. I can splice it if needed, but until I find the cause of the missing spark I don't see a need. The bike turns over great, lights all work...just no spark. Any ideas of where to start? does this bike have a fuse block or even a main fuse other than the one on the battery lead ?
	0

06-18-2019, 08:24 PM	#2
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,554	Check that you didn't acidently turn on the kill switch. You only have the one fuse. __________________ 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 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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06-18-2019, 09:56 PM	#3
flhellcat Join Date: Mar 2019 Posts: 45	Maybe check pins/sockets are seated in stator connectors. Jiggling wiring could have broken a connection. I had unseated pins from the factory.
	1

06-18-2019, 10:29 PM	#4
NzBrakelathes Join Date: Jun 2016 Location: Hell Posts: 2,408	Red / white or black is 75v AC to stator to power it Blue white is Hall effect sensor Either busted bigbig no go
	0

06-19-2019, 10:22 AM	#5
bonth123 Join Date: Jun 2019 Location: Central Washington Posts: 5	Sooo...sounds like that little pinch killed it...guess I will splice that wire and make sure the pin connectors are all seated. Thanks for the information.
	3

06-19-2019, 06:14 PM	#7
bonth123 Join Date: Jun 2019 Location: Central Washington Posts: 5	Thank you all for the responses...fixed the wire and all is good.
	0

06-19-2019, 10:10 PM	#9
kingofqueenz Join Date: Apr 2019 Location: Strong Island New Yawk Posts: 464	Love stories like this - this forum keeps the band marching on. Great success story and great forum ( especially for a newbie like me ). Nicely done fellas
	1