Issues with PWK on KX125

Wangstedt 9/7/2020 12:18am
9/7/2020 12:18am
jaguar57 wrote:
my god man, why would you settle for "a little bogging" when you can have it running super crisp all thru the whole throttle range? Here's...
my god man, why would you settle for "a little bogging" when you can have it running super crisp all thru the whole throttle range? Here's an easy to use software program that can make you a jetting expert: www.dragonfly75.com/moto/carbjetting.html and it only costs $20. That's about the cost of one needle and yet people order and try many needles and main and idle jets until they can live with the results. Fuck that, bikes exist to give me pleasure and if it ain't crisp all the way thru it detracts from it being a fully positive experience.
Im not interested in buying anything.

I wont settle with the bogging. im not finished.
jaguar57
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jaguar57 9/7/2020 12:27am
9/7/2020 12:27am
That is needle related and you need a computer program to figure it out.
I've been there and done that and pulled my hair out for a year trying to figure out correct jetting until I used that program.
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Phillip_Lamb
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Phillip_Lamb 9/7/2020 10:25am
9/7/2020 10:25am
can i ask why the change in slide and jets?

typically making too many big changes will have you chasing your tail
Wangstedt 9/8/2020 4:43am
9/8/2020 4:43am
Phillip_Lamb wrote:
can i ask why the change in slide and jets?

typically making too many big changes will have you chasing your tail
Well Im a rookie in carburetors and this is a way of getting better.
I was changing jets cause I thought that was the problem.

Got the slide for free and thought why not?

Ive learned a lot during this.

Byt the CCL-needle seems to be the right way to go.


Regards

/ Christopher

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LKHill
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LKHill 9/9/2020 6:30am
9/9/2020 6:30am
The only way to properly jet a carb is identify the exact throttle position you are running in. The pilot and the slide overlap so it can get a bit confusing. I have a bunch of needles and a slide laying around so I think we could narrow it down if you want help.
Wangstedt 9/9/2020 11:59pm
9/9/2020 11:59pm
LKHill wrote:
The only way to properly jet a carb is identify the exact throttle position you are running in. The pilot and the slide overlap so it...
The only way to properly jet a carb is identify the exact throttle position you are running in. The pilot and the slide overlap so it can get a bit confusing. I have a bunch of needles and a slide laying around so I think we could narrow it down if you want help.
Ive put the ccl needle in and im getting really close in solving it.

What do you mean by the exact throttle position? Smile

Regards

/ Christopher
Chris99Flannery 9/10/2020 12:35am
9/10/2020 12:35am
LKHill wrote:
The only way to properly jet a carb is identify the exact throttle position you are running in. The pilot and the slide overlap so it...
The only way to properly jet a carb is identify the exact throttle position you are running in. The pilot and the slide overlap so it can get a bit confusing. I have a bunch of needles and a slide laying around so I think we could narrow it down if you want help.
Wangstedt wrote:
Ive put the ccl needle in and im getting really close in solving it. What do you mean by the exact throttle position? :) Regards /...
Ive put the ccl needle in and im getting really close in solving it.

What do you mean by the exact throttle position? Smile

Regards

/ Christopher
Mark with white marker on your throttle housing the fraction of throttle opening, so you can pin point what circuit is open at the time of the leanness, or richness.
digger
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digger 9/10/2020 3:02pm
9/10/2020 3:02pm
Wangstedt wrote:
Ive put the ccl needle in and im getting really close in solving it. What do you mean by the exact throttle position? :) Regards /...
Ive put the ccl needle in and im getting really close in solving it.

What do you mean by the exact throttle position? Smile

Regards

/ Christopher
We need to know in what part of the throttle range (0--25% 25%--75%, 60%--100%) the bog is happening in, so that we can help identify which part of the carb needs to be adjusted, pilot, needle, main....
Wangstedt 9/11/2020 12:12am
9/11/2020 12:12am
Wangstedt wrote:
Ive put the ccl needle in and im getting really close in solving it. What do you mean by the exact throttle position? :) Regards /...
Ive put the ccl needle in and im getting really close in solving it.

What do you mean by the exact throttle position? Smile

Regards

/ Christopher
digger wrote:
We need to know in what part of the throttle range (0--25% 25%--75%, 60%--100%) the bog is happening in, so that we can help identify which...
We need to know in what part of the throttle range (0--25% 25%--75%, 60%--100%) the bog is happening in, so that we can help identify which part of the carb needs to be adjusted, pilot, needle, main....
The bog is when the bike is on idle and you hit full throttle. The first second is a bog then it is crisp Smile

Needle only have one click left from the top.

45/180 jets

Regards

/ Christopher
digger
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digger 9/11/2020 8:57am
9/11/2020 8:57am
Wangstedt wrote:
The bog is when the bike is on idle and you hit full throttle. The first second is a bog then it is crisp :) Needle...
The bog is when the bike is on idle and you hit full throttle. The first second is a bog then it is crisp Smile

Needle only have one click left from the top.

45/180 jets

Regards

/ Christopher
it sounds like you're into the pilot circuit and or needle starting diameter and possibly the clip height. The first thing I would do is richen up the pilot to 48 or 50. The air screw may also need to be turned in as well.
jaguar57
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jaguar57 9/11/2020 9:11am
9/11/2020 9:11am
"pilot circuit or needle starting diameter or clip height" or slide

this is a perfect illustration of why a jetting calculator is needed. You can virtually change any of these and see the results on the jetting graph
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LKHill
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LKHill 9/12/2020 11:25am
9/12/2020 11:25am Edited Date/Time 9/12/2020 11:37am
Wangstedt wrote:
Ive put the ccl needle in and im getting really close in solving it. What do you mean by the exact throttle position? :) Regards /...
Ive put the ccl needle in and im getting really close in solving it.

What do you mean by the exact throttle position? Smile

Regards

/ Christopher
digger wrote:
We need to know in what part of the throttle range (0--25% 25%--75%, 60%--100%) the bog is happening in, so that we can help identify which...
We need to know in what part of the throttle range (0--25% 25%--75%, 60%--100%) the bog is happening in, so that we can help identify which part of the carb needs to be adjusted, pilot, needle, main....
Wangstedt wrote:
The bog is when the bike is on idle and you hit full throttle. The first second is a bog then it is crisp :) Needle...
The bog is when the bike is on idle and you hit full throttle. The first second is a bog then it is crisp Smile

Needle only have one click left from the top.

45/180 jets

Regards

/ Christopher
Just to be sure it sounds like a lean bog. Does it cut out then go or blubber from being rich. You had to go way rich on the main and pilot to compensate. The needle is more or a fine tuning thing. The slide is from 1/8 throttle to half throttle. If that is the range of the lean bog (cutting out) start by going to a richer slide. Dial in the pilot and main after that. Once you are close work the needles by starting in the middle clip. The needle will effect 1/4 to 3/4 throttle.
15tc150
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15tc150 9/12/2020 6:00pm
9/12/2020 6:00pm
Your pilot and main should be pretty close to good, try raising your needle clip by clip till the bog goes away, air screw 1.5 turns out, every 125 iv ever ran with that carb has usually ended up in either the 4th or 5th clip and varying main and pilot jets.
Wangstedt 9/23/2020 4:44am
9/23/2020 4:44am
Wangstedt wrote:
The bog is when the bike is on idle and you hit full throttle. The first second is a bog then it is crisp :) Needle...
The bog is when the bike is on idle and you hit full throttle. The first second is a bog then it is crisp Smile

Needle only have one click left from the top.

45/180 jets

Regards

/ Christopher
digger wrote:
it sounds like you're into the pilot circuit and or needle starting diameter and possibly the clip height. The first thing I would do is richen...
it sounds like you're into the pilot circuit and or needle starting diameter and possibly the clip height. The first thing I would do is richen up the pilot to 48 or 50. The air screw may also need to be turned in as well.
So I got the bike nearly where I want it to be. And then i noticed the Boyesen intake boot is too soft so the carburetor isnt a 100% fit.
Ill need to sort that thing out before I can do anything.


Regards

/ Christopher

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