hahaha too funny, and true

 

Ditch Pickle pulling the enrichener (aka choke) made the mix richer. That was the same issue I had with the shimmed stock needle. Then I went to the N1TC needle second notch from top. My elevation is 1000 ft. Raise the needle, go to 2nd notch from top. That will richen your partial slide opening portion of the range from 3/8-3/4 throttle zone.

 

Ok, lets do this ...

-on cold starts, the bike will bog when given throttle unless the enrichener is pulled out. After a couple minutes it will accept throttle. This does not happen with the lid on, DJ 128 and needle at 3n

While I and others might see this as normal, I understand it bothers you. Since the choke allows throttling during this "warm up" time, it would seem that leanness in the pilot system is the problem - understandable since you are using the stock pilot jet. A larger pilot jet would richen this area and this timeframe - cutting down or eliminating the choke useage..

-No feeling of the "low down torque that one expects from a single cylinder dual sport" I can't express this enough. The reason most people love their thumper is because it makes power low down in the rpm range...

Your setup is not designed to create max trq "down low". It is designed to create the best overall power band. If you want to maximize trq below 6.5K rpm, you will need to put back on the stock header and use the K152/DJ140 @ 1N lidless recipe. I also own a TW200, for over a decade now, I cannot understand or follow any comparison between the two bikes as "apples and oranges" is not sufficient - Walnuts and Watermelons..?



-when cruising along between 5500 and 6500 rpm, there is a "surge" or a feeling that the bike is dragging a rope.. this is just how MY mind imagines the sensation. That might not be the best description for someone else who might experience the same thing. Either way, it happens only at this rpm range, and only with the k158 lidless recipe. Does not happen with DJ stage 2

Assuming all the silly things, like leaking boot connections, vacuum leaks, etc, are not present.. I can only imagine that this is a malfunction relating to slide movement..
As you've described it, this is a part-throttle issue. You are holding a steady part throttle position, yet the fueling seems to waver.. The slide will likely be operating in the lower half of its' range..
What happens in this RPM area when you snap and hold WOT in 4th gear from 4000 rpm?
Does this manifest only on level ground? While going uphill (heavier engine loading) as well?
Are you sure you are using a unmolested stock slide spring?



Lastly, DP, I understand that you are looking for answers and not finding them readily available - please don't draw bad conclusions from discussions in here. Geo has presented information that seems to indicate issues with lidless setups that do not apply to your described issues. He also puts forth that the MCM could have a different effect on '06-'08 KLX's because they could be running a different spec exhaust cam - again, not an issue you are experiencing..

 

look, I'm trying to explain how the bike doesn't run like it should with the biggest main jet no lid recipe and your telling me that is how it should run. If it's meant to do nothing but make big power at WOT above 6.5k rpm, please clarify that, and I'll stop trying to figure out why my bike isn't performing as well as yours. I say again and again, power gains at WOT above 6.5k but not as much power as Stage II underneath that.

No where in your dynocharts or other posts do you say "bike only pulls hard above 6.5k". You continually say there will be a better torque curve with a smaller jet under 6.5k, which I accept may be true... but from what I understand by going to the biggest main jet tested for proper fueling is that there should be gains all across the board over the dynojet stage II. With my sprocket set up, main jet, no lid MCM, I should be able to lift the front wheel with a crack to WOT at 4k rpm. It doesn't happen, and that combined with other odd fueling experiences such as a surge and a strange warm up time indicates something may be different from my carb than yours, and that could be the cause. Why can't we talk about that?

 

Some things I can help with, some I can't. I'll try to address your concerns as best I can.

We can't talk about your carb being different from mine or any other because there is no evidence that yours IS different. From what Geo has said (about issues he had with his "different" carb) yours is NOT different than mine..

I think your bike is very likely performing the same as mine. Wheelie from 4k is improper technique with your/our setup. It's more like 4.5 - 5k, if I recall correctly..

The part throttle surging will be troubleshooting. Stage II muzzles the intact tract compared to lidless, changing all pressure gradients on all carb circuits. It is likely an "unfortunate fluke" that this remedies your issues.. It is almost as if both your issues are caused by a vacuum leak - leaning out the AFR ...

You continually say there will be a better torque curve with a smaller jet under 6.5k, which I accept may be true...
I have no idea what that statement means - I assume you mistyped..


If forum history is to be heeded, you will find and fix the problem - just as many have done before you..

Regarding power bands : All I know is that the few members that have gone back and forth between Lidless and Stage II, have always chosen Lidless. Perhaps, when your issue is fixed, you will too. My personal experience is limited to Lidless+stock header+ MCM and Lidless+FMF system + MCM. I can comment on those two different riding experiences. I have never run MCM+FMF system+Stage II as that seems a strange and improper mix of performance mods to me - two helping low/mid power with one killing it..

This thread has helped others fix problems : https://www.kawasakiforums.com/forum...s-fixes-43146/

 

it's a canadian 07 klx250s, why would mine be different from geos

 

Geo has introduced the possibility that some Canadian KLX's will carry different carb internals and will not respond correctly to known working CVK setups. This cannot be true "across the board" as many members would have been affected over many years - and as seen earlier in this thread, they are not. If you cannot accept this, reread Geo's post about his issues when he tried lidless with much smaller main jets than you - a K140 and K148 - it is post #23 on page 3.

 

Geo never mentioned if he had an aftermarket muffler either

I have issues with my bike and your recipe and you would rather blame my install process or missing a vacuum leak than believing I have different internals in my carb. Even a simple parts number comparison between 06-07 klx250s and 2009 klx250s shows different emulsion tubes and needles.

I dont care if you believe me or not about the cause being internals, but I do know that your big main recipe causes problems in my bike that can be repeated and deleted by going from stage II to the klxster koolaid. That might be tough to swallow, but too bad! Enjoy your koolaid, for me it only tasted good on the highway...

 

Perhaps when you're in a better mood you should post pics of your emulsion tube.

 

I applied Klxter koolaid to both my 09 331 and my friends 07 250. Both bikes run great. They rip off and on road. Sorry you are having issues.