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Only $10 for all 2026 SX, MX, and SMX series.
They certainly have a different feel and I can see people liking them for trail riding.
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He didn’t even let me put in my jetting specs for my 06 CR125 that ran like a top, said it would be too much work and wouldn’t fix it anyway.
The Lectron treated him well, but after coughing up that coin he had to run my take off tires the rest of the year.
If a stock bike can't be dialed with plus or minus one or two jets on pilot, main or needle clip, that is a big deal and no wonder people look for alternatives.
End users shouldn't need to change needles, nozzles and start filing slides to get the bike running decent.
And yes, I've tried them all.
Just can't see dropping the coin to replace another true tested widget.....
If you change a clip on the needle you’re halfway there already.
I thought about buying the new lectron or a smartcarb a few weeks ago, but I like the mikuni as it is now. Buy the jets and slide from AJ’s thread and buy him a few beers instead. Way cheaper and better!
Nothing wrong with carbs, and nothing wrong with swapping one or two jets or clip position.
But having to buy new needles, nozzles, isn't good for anyone in this sport. Buying slides is expensive, cutting them can be dangerous if not done right. Combining all that together is a giant shit sandwich.
No one wants to mess around wirh their carb for a month or two every time they ride their new bike trying to dial it in and not blow it up.
The mikuni is a great carb, but damn have they missed the mark with settings and they've been at it for half a decade.
I guess you are right, KTM should have adressed this and released the bike with good jetting. The thing is the tinkerer in me doesnt mind swapping brass and filing slides.
And it seems they didnt try to hit the mark, they just put some specs in there it seems like.
With that said, the best needle for the previous generation of Keihin carburated 250s was a Suzuki needle called NECJ. Haha, theres always someone tinkering and even if its TBI next year someone is probably gonna throw a Keihin in there or do something with it.
One more thing, constantly changing jets etc isn't good for other reasons, when you twist the carb to access, the cable gets distorted and wears prematurely, carb manifold the same and the breathers can get messed up also. Then there is all the fuel you are breathing in and getting on your skin.
Plus, all that time and frustration when it doesn't go right... fair play to the vital gang for short cuts on settings tho.
Pit Row
The factory settings are so crap, people are buying new carbs and going riding vs wasting their time messing around swapping parts.
Ive run your settings and they are great, congratulations on helping sell all the parts that the bike should have come with in 2017.
Good job to lectron for fixing all the feedback. Let's hope the new version works great and people can run it and go have fun.
If you are out of the altitude range (mine had the rod for 5000 feet plus) at sea level in my case, they don't run well and you have to change the meter rod. I also had to trim the air boot on both bikes and the adjuster knob on top was hard to actuate.
I bought a '98 RM125 to turn into a woods bike. Couldn't get the thing to idle.
Mucho internet searching revealed no one else was able to get that year RM125 to idle either (it's a Keihin VM carb, I think it was only on the RM for a single year). I tried the obvious possibilities but the design of the carb simply does not allow it.
It's an interesting experience to ride a 125 that doesn't idle in the woods.
I could have bought a used carb to swap on there instead. That looked to be at least a $200 dollar proposition.
But I've also learned that trying to use products for applications that they weren't originally designed for ends up being a money pit. For instance, trying to use a 96 or 97 RM125 ends up meaning I'd have to replace the airbox with a 96 or 97. Maybe a new filter/cage. Experience tells me I'd end up spending another $200 to make it work.
And I'd end up dropping a bunch of time and frustration into trying to make a different carb work. Plus there are no good starting resources for how to jet a carb from a 2003 YZ125 for a 98 RM125. I also hate dealing with jetting - mosty because of how much a PIA it is to get a carb off the bike to access the jets.
I'm mostly just typing this out to justify my decision to drop $650 bucks for a plug and play solution that is unique to the specific model and year bike I'm using.
My recommendation is mikuni with aj specs, or keihin pwk Stic metering block. Both run great and are up to the job and both give different riding experience.
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