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AJ565 Liked a reply to forum topic 125/150/250/300 KTM/HUS/GG jetting thread
10/10/2024 12:18pm
Put the stock sping back in and set it at 1 3/4 turns in from all the way out and adjust from there in 1\8 turns. Try 1/8 out first and see if that improves things. I noticed on mine after I replaced the bottom end that I had to adjust my PV from where I had it set to get the power back to where it was before the rebuild.
This forum topic has 1204 replies.
milošfusek Added a reply to 125/150/250/300 KTM/HUS/GG jetting thread
10/9/2024 12:09pm Thanks! PV Yellow spring 2 turns in from.
milošfusek Added a reply to 125/150/250/300 KTM/HUS/GG jetting thread
10/9/2024 6:38am KTM sx 250 2019 Main jet 470 Pilot jet 32.5 (60-80°F) Slide 5.5 Needle 42-75 Clip position #3 Needle jet S4 Air screw 1.5-2.0 Fuel 50:1
milošfusek Added a reply to 125/150/250/300 KTM/HUS/GG jetting thread
10/9/2024 3:31am i'm driving elevation 700-900Ft. Temperature 60-70°F. I honestly can’t feel the power difference between a 460 and 500 main jet. Needle 42-75 3 position. Slide 5.5. where is the problem?
milošfusek Added a reply to 2018 ktm 250sx jetting and FWW
3/20/2023 1:28am AJ thank you very much for your help.
AJ565 Liked a reply to forum topic 2018 ktm 250sx jetting and FWW
3/20/2023 1:02am
No you can use the 5.5. It might be a touch richer, but I’ve tested that slide too and had good luck with it. Also order needle 42-75 (Yamaha part #284-14116-H5-00) and start on the second clip and the air screw around 1 3/4 turns out. You might need to try both needles and see what one works best for you.
This forum topic has 121 replies.
milošfusek Added a reply to 2018 ktm 250sx jetting and FWW
3/19/2023 11:54am Is slide 5.5 the problem? My dealer only has 5.5 and 6. 5.75 out of stock.
AJ565 Liked a reply to forum topic 2018 ktm 250sx jetting and FWW
3/17/2023 5:59am
A 470 main jet is too lean for this setup. A 16-72 is the wrong needle for this setup. All of the parts numbers I listed are what’s needed for the setup and has been tested to work together properly so basically it’s an all or none kinda deal to work right.
This forum topic has 121 replies.
milošfusek Added a reply to 2018 ktm 250sx jetting and FWW
3/17/2023 3:03am Please Suzuki needle 16-72 for needle jet S4 or S1?
milošfusek Added a reply to 2018 ktm 250sx jetting and FWW
3/15/2023 2:10pm I have 470 main jet. It is problem?
AJ565 Liked a reply to forum topic 2018 ktm 250sx jetting and FWW
3/14/2023 11:39pm
It’s been in both threads you posted on. Main jet 500 Pilot jet 32.5 Slide 5.75 (Kawasaki part#16025-0003) Needle 43-75 (KTM part #55431134400) Clip position #2 Needle jet S4 (KTM part #55431021400) Air screw 1.5-2.0 Fuel 55:1
This forum topic has 121 replies.
milošfusek Added a reply to 2018 ktm 250sx jetting and FWW
3/14/2023 12:52pm Please jetting for ktm sx 250 2019? I am Czech Republic 550-700 meters above sea level Temperature 25-30°C. Thanks
milošfusek Added a reply to 125/150/250/300 KTM/HUS/GG jetting thread
3/4/2023 12:39pm Hello, Please What settings for Ktm SX 250 2019 250 2019. Carb Mikuni tmx 38. Country Czech Republice. Temperature 20-30°C The height above sea level is 600 meters.