So I have the .018 drill bit for the starter jet. I have the 7/64ths drill for the slide. And I'm planning on getting the n1tc and doing the kdx snorkel for the first mods to the bike. Also got an allen head screw swap kit.

Does anyone see any probable issue with going straight from stock to these additions?

 

Lol !

Wait,,,, this IS a joke ?

 

What are you going to do to get the additional exhaust gases OUT of the bike?

Ride on
Brewster

 

Never go straight from stock. What the Hell is wrong with you ?

 

Nope. Dead serious.

I get there will be more gasses but what is the starting point on this stuff? Just looking for information.

Also can anyone explain exactly what drilling the slide does?

 

Drilling the slide? What does it do?
It ruins a very expensive part.

Once drilled, you will never be able to make max power. You will have to replace the slide or JB weld your hole closed and redrill it to stock specs, if you want to set up the engine/CVK for max power..
N1TC is money wasted on a "too short" needle that can only mask the effects of a "too small" main jet in the midrange - since top end is "main jet only", it will go very very lean ! And the N1TC is too short and aggressive for correct main jets, resulting in midrange overfueling.

You're reading ancient crap that has been superseded/replaced with dyno (actual data) developed crap..

Nothing "real" can happen performance-wise, until you at least put on a performance slipon or a full KLX300 exhaust system with the butt plug removed. Once that is done, we can talk about carb/airbox setups..

Actually, the MCM is a great 1st mod for a dead stock KLX . That is what I did 1st and the increase in TRQ is big enough to be easily felt, even on a dead stock bike !

 

Mcm mod. No thanks.

I dont want to struggle with it like you and some others have just for a small improvement. I'll work on a carb though.

So it looks like what you're saying is that I need to start with a slip on and a jet.. Would you suggest an air box mod after the jet? Has anyone ever tried the klx250r needle?

So what exactly does the 7/64ths do?

 

You wil need to get a DJ2152 or DJ2206 jet kit and, at least, a slipon..

To allow for both lidless airbox configurations, you'll also need to order (from DJ) a DJ140 and a DJ144 main jet (if you are near sea level)..

7/64th quickens the slides' action. In the old days, it would make the engine "snappier" with small/stock main jets - but now days it just causes overfueling, loss of mileage, and sluggish responses..

 

Sounds good. Definitely wont be doing the slide drill.

My whole issue is that itthe hard to start (09 model), and idles at 1500-1700rpm warm. Any lower and it wants to fall out. And yes I set idle 1st then set mixture around that. It's just bugging me. I dont have hesitation riding or anything but my thoughts were to open it up a little. I dont think I'm far off having good tuning but it could be better. I'm the 3rd owner and the 1st owner rode it as a dirt bike. The 2and owner and his dad rode it on the street for fun. So I'm just trying to get it running the best it can as easy as possible. The carb is completely spotless.

Thoughts?

 

Also light surging in low gear. 0 - 20mph