wiring help for Lifan 125cc on Trx90

589outlaw · 03-22-2010, 01:44 PM

Hey everyone. I installed a semi-auto Lifan 125cc kickstart into my son's 93 Honda Trx90. The engine came with new CDI, coil and wiring harness. However, I am having a little trouble figuring out the proper connections. Any help would be greatly appreciated. I will do my best to give you details.

From the ignition key I have a green wire and a black/white wire.

From the kill switch there is a green wire and a black/white wire.

From the coil there is a green wire and a black/yellow wire.

From the CDI there is a blue/white wire, a black/red wire, a green wire, another green wire, a black/yellow wire, and then a separate wrapped set that has a green wire and a black/white wire.

From the engine there is a blue/white wire, there is a black/red wire, a yellow wire, a green/red wire, a white wire, and a green wire.

I think that covers them all. Some of them seem to be obvious connections but the others have me scratching my head. Again, any help would be appreciated. Thanks!

David

katoranger · 03-22-2010, 03:44 PM

Here is a TRX70 wiring diagram

http://ep.yimg.com/ca/I/dratv_2095_17301019

Here is a link to the Dr Atv website.
http://www.dratv.com/wiringdiagrams.html

Lots of help there too.

This may get you started.

Allen

589outlaw · 03-22-2010, 06:09 PM

Thanks Allen. That did help some. I still have a couple of loose ends, but I am slowly getting there.

katoranger · 03-22-2010, 09:23 PM

Electrical is not my strongpoint. Nothing is really. We have some here that will be better able to help.

I am sure the electrical is not too complicated.

Now I am just going to make a guess that the green and black/white from the CDI should be connected to the key and kill switch.

I am just matching colors. Probably not correct.

Allen

589outlaw · 03-28-2010, 10:27 PM

I've got it running now. The kill switch still isn't working though. I also can't figure out where the yellow wire coming out of the engine harness is supposed to go. Any ideas? :?:

fishman10 · 03-28-2010, 10:38 PM

check it for ac current,I may be wrong ,but if it has ac it probably goes to the regulator/rectifier.

589outlaw · 04-07-2010, 11:17 PM

Ok, I have it all worked out now. The yellow and the white wires are not needed on my quad because they are for electric start. I got the kill switch to work by wiring it with the ignition. Just wanted to give everyone an update. Thanks for the help guys!

589outlaw · 04-07-2010, 11:26 PM

Here it is with everything done but the plastics.

Weldangrind · 04-08-2010, 12:16 AM

Wow, dig those rims! Are they from a Honda?

589outlaw · 04-08-2010, 01:05 PM

I am pretty sure they are the stock wheels from a 93 Trx90

katoranger · 04-08-2010, 01:46 PM

Another resurrected honda using china power. The kids are going to have a great time on that.

Allen

589outlaw · 04-09-2010, 05:48 PM

Ready to ride! My son is so happy to have it running again.

03-22-2010, 01:44 PM	#1
589outlaw Join Date: Mar 2010 Posts: 7	wiring help for Lifan 125cc on Trx90 Hey everyone. I installed a semi-auto Lifan 125cc kickstart into my son's 93 Honda Trx90. The engine came with new CDI, coil and wiring harness. However, I am having a little trouble figuring out the proper connections. Any help would be greatly appreciated. I will do my best to give you details. From the ignition key I have a green wire and a black/white wire. From the kill switch there is a green wire and a black/white wire. From the coil there is a green wire and a black/yellow wire. From the CDI there is a blue/white wire, a black/red wire, a green wire, another green wire, a black/yellow wire, and then a separate wrapped set that has a green wire and a black/white wire. From the engine there is a blue/white wire, there is a black/red wire, a yellow wire, a green/red wire, a white wire, and a green wire. I think that covers them all. Some of them seem to be obvious connections but the others have me scratching my head. Again, any help would be appreciated. Thanks! David
	0

03-22-2010, 03:44 PM	#2
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	Here is a TRX70 wiring diagram http://ep.yimg.com/ca/I/dratv_2095_17301019 Here is a link to the Dr Atv website. http://www.dratv.com/wiringdiagrams.html Lots of help there too. This may get you started. Allen __________________ You meet the nicest people on a Honda Clone.
	0

03-22-2010, 09:23 PM	#4
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	Electrical is not my strongpoint. Nothing is really. We have some here that will be better able to help. I am sure the electrical is not too complicated. Now I am just going to make a guess that the green and black/white from the CDI should be connected to the key and kill switch. I am just matching colors. Probably not correct. Allen __________________ You meet the nicest people on a Honda Clone.
	0

03-28-2010, 10:38 PM	#6
fishman10 Join Date: Sep 2008 Location: central PA Posts: 770	wire check it for ac current,I may be wrong ,but if it has ac it probably goes to the regulator/rectifier.
	0

04-08-2010, 12:16 AM	#9
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Wow, dig those rims! Are they from a Honda? __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

03-22-2010, 06:09 PM	#3
589outlaw Join Date: Mar 2010 Posts: 7	Thanks Allen. That did help some. I still have a couple of loose ends, but I am slowly getting there.
	0

03-28-2010, 10:27 PM	#5
589outlaw Join Date: Mar 2010 Posts: 7	I've got it running now. The kill switch still isn't working though. I also can't figure out where the yellow wire coming out of the engine harness is supposed to go. Any ideas? :?:
	0

04-07-2010, 11:17 PM	#7
589outlaw Join Date: Mar 2010 Posts: 7	Ok, I have it all worked out now. The yellow and the white wires are not needed on my quad because they are for electric start. I got the kill switch to work by wiring it with the ignition. Just wanted to give everyone an update. Thanks for the help guys!
	0

04-07-2010, 11:26 PM	#8
589outlaw Join Date: Mar 2010 Posts: 7	Here it is with everything done but the plastics.
	0

04-08-2010, 01:05 PM	#10
589outlaw Join Date: Mar 2010 Posts: 7	I am pretty sure they are the stock wheels from a 93 Trx90
	0

04-08-2010, 01:46 PM	#11
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	Another resurrected honda using china power. The kids are going to have a great time on that. Allen __________________ You meet the nicest people on a Honda Clone.
	0

04-09-2010, 05:48 PM	#12
589outlaw Join Date: Mar 2010 Posts: 7	Ready to ride! My son is so happy to have it running again.
	0