Off-Road.com's Ride-Net! New and Improved! 2002 KTM 250 MX

Feb. 01, 2002 By ORC STAFF
? 2002 KTM 250 MX
200 E/XC
250 E/XC
300 E/XC
380 E/XC
400 E/XC
520 E/XC

Engine:
Reed Cage

  • Boyesen
  • More power, improved engine response.
  • Quicker revving and harder hitting.

Crankshaft

  • Stuffers are now plastic instead of aluminum making them more reliable.
  • Total weight is 100 grams lighter.
  • Smoother throttle roll-on power delivery.

Cylinder

  • New transfer port design.
  • New cylinder head combustion chamber design.
  • Marked increase in power.

Ignition

  • New digital box programs improves and broadens performance.

Shifting

  • Shift drum detent and star are now one piece like the RFS models assuring accuracy and durability.

Carburetor

  • No longer has a power jet carburetor.
  • New atomizer is easier to jet and less affected by weather conditions.
  • Standard jetting covers a broader range.

Suspension:
Front Forks

  • New 48 mm USD forks.
  • More rigid.
  • Derived from the "WORKS" fork.
  • Equipped with external preload adjusters (one on each side).

Shock Absorbers (WP)

  • Adjustable high and low speed compression damping.
  • More shaft travel.
  • Upper shock body is now forged instead of cast.
  • New valving.

Chassis:
Sidestand

  • Bigger, Badder, Better Bolt.

Swingarm

  • Improved design at the rear axle mounts.
  • Minimizes flex and twisting of the entire swingarm and improves overall performance.

Graphic Design

  • Seat is still two-toned, but with a new manufacturing process.
  • Rear fender and side panel are BLACK.
  • Spoiler, light mask, and front fender are ORANGE.
  • Spoiler logo is the same as 2001 but with more wear resistance.

Specifications:

250 SX
ENGINE single cylinder, 2-stroke
Displacement 249 cc
Bore x stroke 66.4 / 72 mm
Starter kick starter
Transmission 5 gears, close ratio
Fuel Premium Fuel (92 + U.S. Octane)
Carburetor Keihin PWK 38 AG
Control TVC KTC
Lubrication Premium Fuel (92 + U.S. Octane),
2-Stroke Premix Oil @ 32:1
Engine oil / transmission lubrication 2 stroke 80/90 wt.
Primary ratio 25 : 72
Final drive Chain 5/8 x 1/4" 520 VM
Cooling liquid cooled
Clutch wet multi-disc clutch, operated hydraulically
Ignition Kokusan digital 2K-1
Spark plug NGK BR 8 ECM
CHASSIS
Frame chromium molybdenum
Subframe Aluminum
Handlebar conical MAGURA
Front suspension WP-USD 48 MA DA
Rear suspension WP-PDS-shock absorber DA
Suspension travel front/rear 295 / 320 mm (11.6 inches/12.6 inches)
Front brake disc brake 260 mm
Rear brake disc brake 220 mm
Front / rear rim 1.6 x 21"; 2.15 x 19" Excel
Front / rear tire 80/100-21"; 110/90-19"
Final drive ratio 14:50
Main silencer Aluminum
Steering head angle 26.5°
Wheel caster / trail approx. 112 mm / 4.40 inches
Wheelbase 1481mm / 58.3 inches
Ground clearance 385mm / 15.2 inches
Seat height (unladened) 925 mm / 36.4 inches
Fuel capacity approx. 7.5 liters / 2 U.S. Gallons
Weight approx. 101 kgs / 222.6 lbs.


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