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sandman768
7/12/2017 2:00pm
7/12/2017 2:00pm
Edited Date/Time
12/18/2018 4:35pm
Thinking about picking up a 2018 sx 250, I have read through most of the threads regarding the 2017, just wanting to hear from owners of the 17 to see how they held up. Do not anticipate major changes to the 18 model over the 17. Has anyone seen an 18 250 sx yet?
My '14 KTM 150SX has 75 hours being ridden as hard as I can muster and it's still in great shape. Hoping for the same out of the TC.
The Shop
I have a 17 put in the JD Jet kit, red spring 2 Dolly turns in and put a 304 silencer on....runs great a little lean ( hanging idle) but I really like it....better than my 350 .
I have a 17TC250.
Best I got so far is 40PJ, stock needle clip#1 and 450 main. tad lean too but clip#2 is way too rich with a real bad mid-range rich spot.
Could not see real improvement from clip#3 (stock) to 2
Same as 17 so not surprised
100+ pages on KTM UK forum, can't count the hundreds on ktmtalk between the different jetting related threads (JD kit /stock jetting/etc..)
My 13 250SX was running fantastic but suspension and chassis were just OK.
Now on the 17 the chassis is top notch but the engine not so... Go figure
Bot jd jet kit, bike ran great, added pc silencer and bike now has a bit of a lean transition when coming off throttle (hanging idle./surge...like petcock off). I went from 3 clips to 3 1/2, going to try 4 in a few weeks...as it is now bike runs awesome, just the off throttle surge has me worried/irritated. May go to a 35 pilot, but the current 32.5 works great (choke, 1 kick fires right up)
let me know what works for you....
Pit Row
Jd kit has a 32.5 pilot all across the board for this kit and main 430 I believe for sea level with little sizes change to accommodate altitude variation.
Im surprised you're going to clip 3.5 or 4 as it was already way too rich for me at clip 2. But since you mentioned a lean transition it is the logic direction .
On my TC at sea level the blue needle is just way too rich.
Crazy, I'm at sea level too, red works for you and blue too rich for me.
I'm away for 2 weeks, but going to run blue on 4th clip when I get back, maybe a 35 pilot too, will let you know if that works for me
the 250 is much faster in the corner for me, much easier to flick around. Also, the 250 has some "pop" in the low end, again helps me in corners...my 350 had no bottom end whatsoever and was like a tank in tight corners...down straights the 350 wins hands down, thing pulled forever, again the main thing for me was weight, also the 250 is just way more fun to ride. Keep in mind I'm a 50 year old shitty vet rider, may race 2-3 times a year for fun (southwick, crow hill etc)
hope that helps.
Also, FWIW, my dealer told me the jd kit works great for woods but he feels its a little lean for mx (northeast)
Am I understanding the SX is still going to be carbureted?
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