2000 KTM 50 SX PRO JR

Engine Type:

Single Cylinder 2- Stroke, Four Petal Reed Induction, Air Cooled

Cylinder:

Aluminum/Plated w/Cooling Fins

Exhaust:

Expansion Chamber With Aluminum MX Muffler

Bore/Stroke:

39.0mm X 41.7mm

Displacement:

49.8ccm

Transmission:

Single Speed, w/Automatic Centrifugal Clutch

Clutch:

Dominator®, Adjustable, Single Disk Type, Centrifugal Clutch

Gear Ratios:

Variable/Automatic

Primary Drive:

Helical Cut Spur Gear

Final Drive:

10 / 45, 415 Chain

Trans Oil Viscosity:

Dominator® Automatic Clutch Oil, Capacity 250cc

Spark Plug:

Bosch W4AC

Fuel/ Premix Ratio:

Premium fuel (92+ U.S. Octane), 2-Stroke Premix Oil @ 32:1

Fuel Capacity:

2.84 liter - .75 U.S. gallons

Carburetor:

Mikuni VM 16-519

Jetting:

Main 90, Needle Jet O-8, Pilot 25, Needle 3DS3-3, Needle Position from top

#3, Slide 2.5, Mixture Screw 2.0 Turns

Ignition:

Electronic/CDI MX, No Lighting Coil

Ignition Timing:

0.25mm-0.35mm Air Gap

Frame Type:

Single Downtube, Split-Cradle w/Sidestand

Fork:

140mm/ 5.5 inches

Fork Travel:

SAE 7.5 wt.

Fork Oil Viscosity:

27.0 degrees

Rake Angle:

90mm/ 3.5? Internal Expanding, Single/Cam Drum

Front Brake:

Vee Rubber® 2.50 x 10?

Front Tire:

Monoshock/ Progressive Spring w/Adjustable Spring Preload

Shock Absorber:

160mm/ 6.2 inches

Rear Wheel Travel:

90mm/ 3.5? Internal Expanding, Single/Cam Drum

Rear Brake:

Vee Rubber® 2.50 x 10?

Rear Tire:

585-640mm/ 23.0 - 24.0 inches, Adjustable

Seat Height:

68 lbs.

Max Rider Weight:

910mm/ 35.8 inches

Wheelbase:

230mm/ 9.05 inches

Weight:

39.5kg./ 87 lbs. (dry)