Sick 9 year old....Please Help!!! - Page 2

Al · 04-04-2020, 05:33 AM

I think the hand break must be on also be locked on to start

Holloway32 · 04-04-2020, 11:31 AM

IT’S RUNNING!!!!

Thank you all so much for your help.

Now I need help with making it idle correctly (not sure if that is the correct to say what I’m talking about or not). When I crank it and turn the choke off, even thoughts it’s in N and sitting still, the engine sounds as if I had it wide open. Is it supposed to sound like that? I was able to adjust it by using the choke.

Bruces · 04-04-2020, 11:56 AM

The idle speed can be adjusted with one of the screws on the side of the carb ,the one in line with the throttle cable is the idle speed screw ,if you adjust it and it doesn’t help ,there is a chance the slide has been installed incorrectly ,but try adjusting the screw outward first

Holloway32 · 04-04-2020, 12:44 PM

Quote:

Originally Posted by Bruces

The idle speed can be adjusted with one of the screws on the side of the carb ,the one in line with the throttle cable is the idle speed screw ,if you adjust it and it doesn’t help ,there is a chance the slide has been installed incorrectly ,but try adjusting the screw outward first

Is the “slide” the black piece (see pic) that the throttle cable connects to? When I replaced the carburetor, I didn’t use the new slide and spring. I left the old ones on. I think that was a mistake. When I put in in gear, it takes off as if I had the throttle wide open but I’m touching the throttle. It’s completely unresponsive.

How do I remove the throttle cable from the old spring and slide and install the new one? Once I change them out, how do I properly install it? I’m going to search YouTube also but you guys explain stuff that makes it easy for me to understand.

Holloway32 · 04-04-2020, 02:38 PM

Afternoon Update: I replaced the old slide, spring, and needle with the new ones. Changing those pieces out is tough....the spring is 2X the length of the throttle cable I had to work with. I think I aligned the grove on the slide with the idle screw. It slid in smoothly. After changing those pieces out, I tested it out again. Now, I have a new issue. When it is in gear, it idles smoothly. However, when it’s in neutral, the engine revs up as if you had it pegged out.

What do I do now?

My current setup is:
- The idle screw and air flow screw (not sure if this are the correct terms) are “in” as far as they can be.
- The governor screw is ~1/2 way in

Dusman · 04-04-2020, 09:37 PM

A couple of things:

1. To decrease the idle, you want to turn the idle screw *out* (counterclockwise). The idle screw on most carbs has a little spring behind it that you can see on the outside of the carb, but some do not. See here @ 35 seconds in:

2. When you put the new carb on, did you make sure that where the carb hooks up to the engine (intake manifold) is bolted on sufficiently tight and that you had the gasket in the right direction? The O-ring side of the gasket should be facing the carb and sufficiently tightened onto the manifold to prevent an air leak, which can cause crazy surging of the throttle at idle.

Rob G · 04-04-2020, 10:48 PM

One thing to note, the slide can go in either way but will only run right one direction. On the LEFT side of the carburetor is the idle adjustment screw (don't mess with the one on the right side, that's air mixture, adjust that later). Now, the slide, it has two notches in it. One is for the cable, the other is for the idle screw. When you turn the screw in it pushes that ramped notch and lifts the slide. Unscrew the slide cap and make certain the slide is in so that the ramped notch is facing the left side of the quad (left side as you are sitting on it).

Al · 04-05-2020, 08:43 AM

If you look at the throddle cable there should be a cable adjustment covered in rubber. Pull the rubber back and you can adjust the cable length. You should be able to see it near the handle bars

Holloway32 · 04-06-2020, 05:20 PM

THANK YOU ALL SO MUCH!!! Almost 2 years later, my son’s family home riding his ATV.

**JerryHawk250** · 04-06-2020, 05:41 PM

Awesome!

Holloway32 · 04-07-2020, 07:50 AM

As far as idling is concerned, what is optimal? Is there a preferred idle for when it’s in neutral vs. drive? How does one know what’s optimal and how to achieve it? So far, for me, if it doesn’t rev up like it’s wide open and doesn’t go dead, I’m good with it.

**JerryHawk250** · 04-07-2020, 08:22 AM

Somewhere around 1500 rpm's.

SevereTrauma · 04-07-2020, 09:46 AM

Glad you got it running. Happy for your son as well. Good to have some good news during this time. Love this site.

humanbeing · 04-08-2020, 06:49 PM

Quote:

Originally Posted by Holloway32

Model #: LZ125 - 4 - 124cc
Manufacturer: Shandong

Full Disclosure: ...

It's made by http://www.lzmoto.com/ . "Shangdong" is just the province name, no meaning at all

04-04-2020, 10:48 PM	#22
Rob G Join Date: Feb 2020 Location: Kuna Idaho Posts: 34	One thing to note, the slide can go in either way but will only run right one direction. On the LEFT side of the carburetor is the idle adjustment screw (don't mess with the one on the right side, that's air mixture, adjust that later). Now, the slide, it has two notches in it. One is for the cable, the other is for the idle screw. When you turn the screw in it pushes that ramped notch and lifts the slide. Unscrew the slide cap and make certain the slide is in so that the ramped notch is facing the left side of the quad (left side as you are sitting on it). __________________ "If money is your hope for independence, you'll never have it. The only real security that a man will have in this world is a reserve of knowledge, experience, and ability." Henry Ford. 2018 Tao Bull 200 red 2018 Tao Bull 200 green 2018 Tao New T-Force graffiti 2018 Tao New T-Force blue
	0

04-06-2020, 05:41 PM	#25
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,585	Awesome! __________________ 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
	1

04-07-2020, 08:22 AM	#27
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,585	Somewhere around 1500 rpm's. __________________ 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
	0

04-04-2020, 05:33 AM	#16
Al Join Date: Jun 2017 Posts: 73	I think the hand break must be on also be locked on to start
	1

04-04-2020, 11:31 AM	#17
Holloway32 Join Date: Apr 2020 Posts: 11	IT’S RUNNING!!!! Thank you all so much for your help. Now I need help with making it idle correctly (not sure if that is the correct to say what I’m talking about or not). When I crank it and turn the choke off, even thoughts it’s in N and sitting still, the engine sounds as if I had it wide open. Is it supposed to sound like that? I was able to adjust it by using the choke.
	2

04-04-2020, 11:56 AM	#18
Bruces Join Date: May 2018 Posts: 1,588	The idle speed can be adjusted with one of the screws on the side of the carb ,the one in line with the throttle cable is the idle speed screw ,if you adjust it and it doesn’t help ,there is a chance the slide has been installed incorrectly ,but try adjusting the screw outward first
	0

04-04-2020, 02:38 PM	#20
Holloway32 Join Date: Apr 2020 Posts: 11	Afternoon Update: I replaced the old slide, spring, and needle with the new ones. Changing those pieces out is tough....the spring is 2X the length of the throttle cable I had to work with. I think I aligned the grove on the slide with the idle screw. It slid in smoothly. After changing those pieces out, I tested it out again. Now, I have a new issue. When it is in gear, it idles smoothly. However, when it’s in neutral, the engine revs up as if you had it pegged out. What do I do now? My current setup is: - The idle screw and air flow screw (not sure if this are the correct terms) are “in” as far as they can be. - The governor screw is ~1/2 way in
	0

04-04-2020, 09:37 PM	#21
Dusman Join Date: Jan 2018 Location: NC Posts: 218	A couple of things: 1. To decrease the idle, you want to turn the idle screw out (counterclockwise). The idle screw on most carbs has a little spring behind it that you can see on the outside of the carb, but some do not. See here @ 35 seconds in: 2. When you put the new carb on, did you make sure that where the carb hooks up to the engine (intake manifold) is bolted on sufficiently tight and that you had the gasket in the right direction? The O-ring side of the gasket should be facing the carb and sufficiently tightened onto the manifold to prevent an air leak, which can cause crazy surging of the throttle at idle.
	0

04-05-2020, 08:43 AM	#23
Al Join Date: Jun 2017 Posts: 73	If you look at the throddle cable there should be a cable adjustment covered in rubber. Pull the rubber back and you can adjust the cable length. You should be able to see it near the handle bars
	0

04-07-2020, 07:50 AM	#26
Holloway32 Join Date: Apr 2020 Posts: 11	As far as idling is concerned, what is optimal? Is there a preferred idle for when it’s in neutral vs. drive? How does one know what’s optimal and how to achieve it? So far, for me, if it doesn’t rev up like it’s wide open and doesn’t go dead, I’m good with it.
	1

04-07-2020, 09:46 AM	#28
SevereTrauma Join Date: Oct 2019 Location: Tucson, AZ Posts: 85	Glad you got it running. Happy for your son as well. Good to have some good news during this time. Love this site.
	1