CDI for HSUN HS400ATV-2

Plutso · 04-01-2024, 10:11 AM

Does anyone know where I could find a cdi for hisun atv, specifically HSUN HS400ATV-2, year 2007 and vin LWGZCSL0X7A080983?

The problem is that when you accelerate hard, the engine dies off and/or starts banging. At a steady speed everything is fine. The fault is more likely to occur when the engine is warm. The repair shop thought it might be caused by the CDI, but doesn't know where to find one for this model, especially here in Estonia, where is no any HSUN dealers

**JerryHawk250** · 04-01-2024, 11:32 AM

If you mean banging as in back firing through the carb, It more than likely needs the valves adjusted. Once the engine warms up, the valves are probably not fully seated due to lack of valve clearance.

Thumper · 04-01-2024, 12:56 PM

Definitely get the valve adjustment dispensed with. It's easy and you can rule that out. Jerry is spot on there.

In addition, you might try some rejetting once the valves are adjusted. First ride it for a few days and see how that affected the engine. Then just try a minor jetting or needle height, or airscrew change and see if it improves or gets worse. If it is basically running OK, these fine tuning issues on the carb can be hard to pinpoint.

If these things don't help, do some testing. A replacement CDI is cheap, and you could simply try a new one. Also, maybe connect a timing light to it and shoot the F line in the timing window. See if you get consistent firing and see if it's lining up cold/hot.

Plutso · 04-03-2024, 05:29 AM

Thanks you for the advice. I also found the HSUN European dealer website, www.hisun-motors.com But unfortunately they announced that they don't produce CDI's for this model anymore, so I have to look for a used one

dugndeep · 05-06-2024, 10:24 AM

Quote:

Originally Posted by Plutso

Thanks you for the advice. I also found the HSUN European dealer website, www.hisun-motors.com But unfortunately they announced that they don't produce CDI's for this model anymore, so I have to look for a used one

What does the plug look like,how many pins?Is that it right there,the yellow plug?Or is that the voltage regulator plug I'm seeing,the yellow one in first photo?

dugndeep · 05-06-2024, 10:29 AM

https://www.ebay.com/itm/155835616023

dugndeep · 05-06-2024, 10:31 AM

All I'm seeing are ones like this:
https://www.sunwaymotorparts.com/pro...Quad-Bike.html

dugndeep · 05-06-2024, 10:37 AM

https://alpha-sports.com/hisun_parts.htm?q=hisun-parts

dugndeep · 05-06-2024, 10:44 AM

https://www.multinationalparts.com/p...s/details/4696

dugndeep · 05-06-2024, 10:48 AM

https://www.aliexpress.us/w/wholesal...tlist.search.0

Plutso · 05-18-2024, 06:38 AM

Thanks guys, I got new cdi from here: https://www.amazon.de/dp/B07C8G51JM/...1_TE_SCE_dp_i1

And everything was ok in first ride after changing cdi, but unfortunately the fun was quite short. After first ride the electricity disappeared, the posts about it is here: https://www.chinariders.net/showthread.php?t=34244

04-01-2024, 10:11 AM	#1
Plutso Join Date: Mar 2024 Posts: 5	CDI for HSUN HS400ATV-2 Does anyone know where I could find a cdi for hisun atv, specifically HSUN HS400ATV-2, year 2007 and vin LWGZCSL0X7A080983? The problem is that when you accelerate hard, the engine dies off and/or starts banging. At a steady speed everything is fine. The fault is more likely to occur when the engine is warm. The repair shop thought it might be caused by the CDI, but doesn't know where to find one for this model, especially here in Estonia, where is no any HSUN dealers Attached Thumbnails
	0

04-01-2024, 11:32 AM	#2
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,725	If you mean banging as in back firing through the carb, It more than likely needs the valves adjusted. Once the engine warms up, the valves are probably not fully seated due to lack of valve clearance. __________________ 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
	2

04-01-2024, 12:56 PM	#3
Thumper Join Date: Feb 2021 Location: Kansas City Posts: 2,771	Definitely get the valve adjustment dispensed with. It's easy and you can rule that out. Jerry is spot on there. In addition, you might try some rejetting once the valves are adjusted. First ride it for a few days and see how that affected the engine. Then just try a minor jetting or needle height, or airscrew change and see if it improves or gets worse. If it is basically running OK, these fine tuning issues on the carb can be hard to pinpoint. If these things don't help, do some testing. A replacement CDI is cheap, and you could simply try a new one. Also, maybe connect a timing light to it and shoot the F line in the timing window. See if you get consistent firing and see if it's lining up cold/hot. __________________ No matter where you go, there you are
	2

04-03-2024, 05:29 AM	#4
Plutso Join Date: Mar 2024 Posts: 5	Thanks you for the advice. I also found the HSUN European dealer website, www.hisun-motors.com But unfortunately they announced that they don't produce CDI's for this model anymore, so I have to look for a used one
	0

05-06-2024, 10:29 AM	#6
dugndeep Join Date: Jul 2019 Location: Lancaster,Ky Posts: 470	https://www.ebay.com/itm/155835616023
	0

05-06-2024, 10:31 AM	#7
dugndeep Join Date: Jul 2019 Location: Lancaster,Ky Posts: 470	All I'm seeing are ones like this: https://www.sunwaymotorparts.com/pro...Quad-Bike.html
	0

05-06-2024, 10:37 AM	#8
dugndeep Join Date: Jul 2019 Location: Lancaster,Ky Posts: 470	https://alpha-sports.com/hisun_parts.htm?q=hisun-parts
	0

05-06-2024, 10:44 AM	#9
dugndeep Join Date: Jul 2019 Location: Lancaster,Ky Posts: 470	https://www.multinationalparts.com/p...s/details/4696
	0

05-06-2024, 10:48 AM	#10
dugndeep Join Date: Jul 2019 Location: Lancaster,Ky Posts: 470	https://www.aliexpress.us/w/wholesal...tlist.search.0
	0

05-18-2024, 06:38 AM	#11
Plutso Join Date: Mar 2024 Posts: 5	Thanks guys, I got new cdi from here: https://www.amazon.de/dp/B07C8G51JM/...1_TE_SCE_dp_i1 And everything was ok in first ride after changing cdi, but unfortunately the fun was quite short. After first ride the electricity disappeared, the posts about it is here: https://www.chinariders.net/showthread.php?t=34244
	0