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Found 99 results

  1. MIMB

    KTM 250 SX (2010)

    0 comments

    This bike has been set up for cross country use and has the 2014 300SX top end , Boyesen Rad Valve , ro Circuit Platinum exhaust, FMF Titanium 2 silencer 11.5lt fuel cell( not shown , Scott's stabilizer , 38mm Lectron Carb , Slaven's S3 head .
  2. mxgrandpa

    KTM 250 SX (2015)

    0 comments

    Back to two stroke, too much fun!
  3. thetrxracer

    KTM 250 SX (2009)

    0 comments

    Great bike
  4. Freggles

    KTM 250 SX (2013)

    0 comments

    lil fast
  5. howar1rc

    2010 250 sx Fuel Tank

    I have a fuel tank puncture so I need to replace it. I mostly ride single track trails in northern Michigan where it would be nice to have more fuel, but I'll also do 6 to 10 hare scrambles this summer. I figured why not get a larger tank, right? KTM actually makes a 3.5 gallon tank (as opposed to the stock 2.2gal) so I'm wondering why anybody would buy one of the aftermarket tanks. I found an Acerbis for $104 less than the KTM tank, but it did not include anything besides the tank. The KTM came with petcock, petcock screws, 2 tank rollers and screws, fuel hose, fuel hose clamp. The other problem I had with the Acerbis is that it doesn’t work with the stock fuel cap. It comes with an old school looking cap, much like the gas can that I use for my lawnmower. I guess people are also using XC tanks on an SX. Is that a cheaper option (or even possible for a ’10)? Is 3.5 gallon too much? If so, maybe I would just not fill it all the way at the track. It also seems to be the most expensive option at $319 I know there are several options. Any suggestions on what tank to get?
  6. Chris.GVS

    KTM 250 SX 2016

    0 reviews

    SPECIFICATIONS ENGINE Design: 1-cylinder, 2-stroke engine Displacement: 249 cm³ Bore: 66.4 mm Stroke: 72 mm Starter: Kickstarter Transmission: 5-speed Primary drive: 26:73 Secondary gear ratio: 14:50 Clutch: Wet, DDS multi-disc clutch, Brembo hydraulics EMS: Kokusan CHASSIS Frame design: Chrome-molybdenum steel central-tube frame Front suspension: WP-USD, AER 48, Ø 48 mm Rear suspension: WP shock absorber with linkage Suspension travel (front): 310 mm Suspension travel (rear): 300 mm Front brake: Disc brake Rear brake: Disc brake Front brake disc diameter: 260 mm Rear brake disc diameter: 220 mm Chain: 5/8 x 1/4" Steering head angle: 63.9 ° Wheelbase: 1485 ± 10 mm Ground clearance: 375 mm Seat height: 960 mm Tank capacity (approx.): 7 l Weight READY TO RACE (without fuel): 95.4 kg
  7. xcracer471

    KTM 250 SX (2014)

    0 comments

    2014 KTM 250SX modified for Offroad by Dirtwise Racing (Shane Watts) with suspension by Stillwell Performance. Great bike, handles awesome and is so light and easy to handle.
  8. hi guys.. my new, well, my 2014 250sx that has about 30hrs has given up today. i saw it run extremely hot in certain types of riding didnt know why, looked at the plug a while back and it was black with gaz on it.. strange... hot can equal lean but wet isnt lean. so i left it like so. today riding wot i hear a bog. then no compression.. take off the spark plug.. dry dry as &%$#@!.. jesus it was most probably a lean seize. why wet the other day and dry now.. the temperature outside was even hotter today too.. here are some pictures. i will now go cry in a corner.
  9. Dadee

    KTM 250 SX (2013)

    0 comments

    Love it
  10. WALKINGWOUNDED

    2014 250 Sx Aftermarket Clutch Cover

    Me and a friend were playing on the track last weekend, and came together in a corner. His lower fork punched a hole in my clutch cover. For now I used the cover off of my 13. Since I have to replace it, are there any aftermarket clutch covers available? Stock will work fine, but maybe one that has more volume, or something with some bling.
  11. ThumperTalk

    KTM 250 SX 1993

    0 reviews

    MOTORCYCLE TYPE Moto Cross ENGINE SPECIFICATIONS Displacement (cc): 248 Cylinders: 1 Engine Stroke: 2 Speeds: 6 Speed TRANSMISSION SPECIFICATIONS Number of speeds: 6 Speed Dry Weight (lbs.): 216
  12. ThumperTalk

    KTM 250 SX 2011

    2 reviews

    GENERAL INFORMATION Model: KTM 250 SX Year: 2011 Category: Enduro / offroad Rating: 75.6 out of 100. ENGINE AND TRANSMISSION Displacement: 249.00 ccm (15.19 cubic inches) Engine type: Single cylinder, two-stroke Engine details: TVC power valve Bore x stroke: 66.4 x 72.0 mm (2.6 x 2.8 inches) Fuel system: Carburettor. Keihin PWK 36S AG Lubrication system: Mixture oil lubrication 1:60 Cooling system: Liquid Gearbox: 5-speed Clutch: Wet multi-disc clutch, operated hydraulically Exhaust system: Aluminium CHASSIS, SUSPENSION, BRAKES AND WHEELS Frame type: Central double-cradle-type 25CrMo4. Aluminium subframe. Rake (fork angle): 26.5° Front suspension: WP USD 48 mm fork Front suspension travel: 300 mm (11.8 inches) Rear suspension: WP PDS shock absorber Rear suspension travel: 335 mm (13.2 inches) Front tyre dimensions: 80/100-21 Rear tyre dimensions: 110/90-19 Front brakes: Single disc Front brakes diameter: 260 mm (10.2 inches) Rear brakes: Single disc Rear brakes diameter: 220 mm (8.7 inches) PHYSICAL MEASURES AND CAPACITIE S Dry weight: 93.8 kg (206.8 pounds) Seat height: 985 mm (38.8 inches) If adjustable, lowest setting. Ground clearance: 385 mm (15.2 inches) Wheelbase: 1,475 mm (58.1 inches) Fuel capacity: 7.50 litres (1.98 gallons) OTHER SPECIFICATIO NS Starter: Kick Color options: Orange
  13. ser50

    KTM 250 SX (2013)

    0 comments

    Love my 2 smoker! SX turned into a XC Lotsa mods. More to come.
  14. johnfowler25

    KTM 250 SX (1997)

    0 comments

    crazy fast!!
  15. Clevohead

    KTM 250 SX (1997)

    0 comments

    My first 2 stroke, she will always hold a special place, rides great and makes great power. Better gear on her than my mates Jap bikes of the same era, this model has Brembo brakes, Ohlins rearshock, and Marzocchi front end. Great bike, not too new to be expensive to fix, and not too old to be able to find parts.
  16. bubs-89

    KTM 250 SX (2009)

    0 comments

    Just brought it, The bike is off it's face, one of the lightest 250s iv ever been on.
  17. Josh377

    KTM 250 SX (2007)

    0 comments

    Funn<br />
  18. jeremy king

    KTM 250 SX (2011)

    0 comments

    2011 250 sx
  19. nickbaldwin86

    KTM 250 SX 2014

    8 reviews

    ENGINE Design: 1-cylinder 2-stroke engine, water-cooled, with reed intake and exhaust control Displacement: 249 cm³ Bore: 66.4 mm Stroke: 72 mm Starting aid: Kickstarter Transmission: 5 gear, claw shifted Primary ratio: 26:72 Final drive: 13:48 Clutch: Wet multi-disc clutch DDS / Brembo hydraulics Ignition system: Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment, type Kokusan CHASSIS Frame: Central tube frame made of chrome molybdenum steel tubing Forks: WP Suspension Up Side Down 4860 MXMA CC Shock absorber: WP Suspension 5018 BAVP DCC Suspension travel Front: 300 mm Suspension travel Rear: 317 mm Brake system: Disc brakes, brake calipers on floating bearings Brake discs - diameter Front: 260 mm Brake discs - diameter Rear: 220 mm Chain: 520 X-ring Steering head angle: 63.5° Wheel base: 1,495±10 mm Ground clearance (unloaded): 385 mm Seat height (unloaded): 992 mm Total fuel tank capacity approx.: 7.5 l Unleaded premium fuel (95 octane), mixed with 2-stroke engine oil (1:60) Weight without fuel approx.: 95.9 kg
  20. pretzel

    KTM 250 SX (2004)

    0 comments

    Animal
  21. old bear

    KTM 250 SX (2012)

    0 comments

    Great bike. Very fast and stable. The best 2 stroke to have by far but you have to be experienced with them or you will be disappointed. When you know how to ride them they are the most fun on two wheels.
  22. I've always heard that the 2 strokes are a little more finicky and can be tricky to tune. I had a KDX that ran perfect always so I guess I got spoiled. I upgraded to a 2004 KTM 250SX but I'm having some weird issues with flat power. Seems like it could be jetting but I'd love to get the opinion of someone that knows 2 strokes well. It's a kind of weird issue: It ran great when I bought it and then I fouled a plug about the 4th time I rode it. I was probably at about 4000 feet elevation so I thought maybe it was just running rich because of that (though my KDX never fouled a plug and I live at sea level and often ride about 3000 feet). I put a new plug in and seemed to be okay when I road it down the street and back. Previous owner says he only used 2 plugs in the 3 years he owned it and had never actually fouled a plug while riding it. But the last 3 times I rode it the bike was making power in a really weird way. Pulls hard in the very first flick of the throttle in first and second gear but the power immediately goes flat after that (like really flat). However if I'm in 3rd-5th gear the power seems to hit hard through the full RPM range. It did not run this way when purchased. I bought it from a friend. I have been on several rides with him when he owned it. It always ran well for him with consistent power and he said he never touched the carb. I pulled the float bowl and made sure everything on the bottom half of the carb was clean including removing the pilot jet and main jet to be sure that they were both clean and not plugged up. It starts fine and has no other issues than this weird flat spot in the powerband. The only thing that i changed since owning the bike was put a different air filter in the bike. I thought that this might be the culprit but I have since put the original filter back in and the bike is still running the same weird way. The research I have done seems to point to it possibly being a jetting issue but that does not explain why it would suddenly start acting this way if the jetting/exhaust/filter have not been changed (am I right)? Any info is much appreciated.
  23. ThumperTalk

    KTM 250 SX 1994

    0 reviews

    MOTORCYCLE TYPE Moto Cross ENGINE SPECIFICATIONS Displacement (cc): 248 Cylinders: 1 Engine Stroke: 2 Speeds: 6 Speed TRANSMISSION SPECIFICATIONS Number of speeds: 6 Speed Dry Weight (lbs.): 216
  24. ThumperTalk

    KTM 250 SX 2003

    2 reviews

    GENERAL INFORMATION Model: KTM 250 SX Year: 2003 Category: Cross / motocross Rating: 77.9 out of 100. ENGINE AND TRANSMISSION Displacement: 249.00 ccm (15.19 cubic inches) Engine type: Single cylinder, two-stroke Bore x stroke: 66.4 x 72.0 mm (2.6 x 2.8 inches) Fuel system: Carburettor Cooling system: Liquid Gearbox: 5-speed Transmission type, final drive: Chain CHASSIS, SUSPENSION, BRAKES AND WHEELS Front suspension travel: 300 mm (11.8 inches) Rear suspension travel: 335 mm (13.2 inches) Front tyre dimensions: 80/100-21 Rear tyre dimensions: 110/90-19 Front brakes: Single disc Front brakes diameter: 260 mm (10.2 inches) Rear brakes: Single disc Rear brakes diameter: 220 mm (8.7 inches) PHYSICAL MEASURES AND CAPACITIES Dry weight: 97.2 kg (214.3 pounds) Seat height: 925 mm (36.4 inches) If adjustable, lowest setting. Ground clearance: 385 mm (15.2 inches) Wheelbase: 1,475 mm (58.1 inches) Fuel capacity: 7.50 litres (1.98 gallons)
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