Pricing: MSRP: Was $5,599 and is now $4,999.
Detailed Specifications
| Dimensions | Air Filter | Transmission | Rear Wheel |
| Overall Length: 83.9 in. | AF Element: Oil coated paper element | Primary Reduction: Spur Gear | Rim Size: 17x4.00 in. |
| Overall Width: 31.3 in. | | Ratio: 2.80 (84/30) | Tire Size: 130/70-17 M/C 62S |
| Overall Height: 44.9 in. | Fuel | Secondary Reduction: Chain Drive | |
| Seat Height: 33.9 in. | Recommended: Unleaded only | Ratio: 2.786 (39/14) | Tire Pressures |
| Wheelbase: 55.9 in. | Fuel Tank Capacity: 2.04 US Gal. | Transmission type: Constant Mesh 6-speed | Manual Spec |
| Ground Clearance: 8.9 in. | Fuel Tank Reserve: TBD US Gal. | | Front Tire Pressure: 29 psi |
| Minimum Turning Radius: 7.5 ft. | Actual observed: NA | Gear Ratios | Rear Tire Pressure: 33 psi |
| | | 1st: 3.000 | |
| Weight with oil and fuel | Carburetor | 2nd: 2.000 | Manual Max Spec (up to 399 pounds max load) |
| 302 lb. | Manufacturer: Keihen | 3rd: 1.500 | Front Tire Pressure: 29 psi |
| | Type/Size: CVK34 mm | 4th: 1.250 | Rear Tire Pressure: 33 psi |
| Engine | | 5th: 1.050 | |
| Type: Liquid cooled single cylinder 4-stroke | Electrical System | 6th: 0.952 | Max Sidewall |
| Valvetrain: DOHC | Ignition: CDI | | Front Tire Pressure: TBD psi |
| Displacement: .249L | Charging: AC Magento | Chassis | Rear Tire Pressure: TBD psi |
| Bore and Stroke: 2.83x2.41 in. | | Frame Type: Semi-double cradle | |
| Compression Ratio: 11.0:1 | Battery | | Front and Rear Brake |
| Starter: Electric | Model: FTX7L-BS | Loading | Type: Single Disc F/R 300/240 mm |
| Lubrication: Wet Sump | | Maximum Load: 399 pounds | |
| | Spark Plug | | Front Suspension |
| Engine Oil | Manufacturer: NGK CR8E | Front Wheel | Type: Telescopic fork - Wheel Travel: 9.1 in. |
| 10W-30 for 14 – 86 degrees F | Plug Gap: 0.028 - 0.031 in. | Rim Size: 17x3.00 in. | |
| 10W-50 for 14 – 120 degrees F | | Tire Size: 110/70-17 M/C 54S | Rear Suspension |
| Quantity: 1.3L w/out filter replacement | Clutch | | Type: Swingarm - Wheel Travel: 8.1 in. |
| 1.4 L w/ filter replacement | Clutch Type: Wet Multiple disc | | |

RPM to MPH in 6th Gear
1 Rev of the crank = [(Pi)*(Tire diameter in inches)]/[(Internal gear ratio)*(Transmission sixth gear ratio)*(Sprocket gear reduction of 39/14)]
1 Rev = [(3.142)*(24.2”)]/[(2.80)*(0.952)*(2.786)] = 10.239 inches. 1,000 RPM = (10,239 inches/min) * (60 min/hr) * (1 foot/12 inches) * (1 mile/5,280 feet) = 9.696 mph
1,000 RPM = 09.7 mph
2,000 RPM = 19.4 mph
3,000 RPM = 29.1 mph
4,000 RPM = 38.8 mph
5,000 RPM = 48.5 mph
6,000 RPM = 58.2 mph
7,000 RPM = 67.9 mph
8,000 RPM = 77.6 mph
Engine Break-in specs
For the first 0 to 500 miles -- Avoid operation above 4,000 RPM. From 500 to 1,000 miles -- Avoid operation above 6,000 RPM. Do not start moving immediately after starting the engine even if warm. Allow your KLX 250SF to idle for two to three minutes so oil can work into all the engine parts.
After 600 miles, perform an initial service including changing the engine oil and oil filter. After 1,000 miles, the bike can be operated normally.
2010 Kawasaki KLX250SF Maintenance, Intervals and Costs
A bike needs more preventative care than a car or truck. In particular, the KLX SF’s maintenance schedule asks for an oil change at 600 miles and every 7,500 miles thereafter plus valve adjustment inspection at 7,500 miles and each additional 7,500 miles thereafter. Additionally, a host of minor items require checking and adjustment at each and every interval. A $200 charge takes care of these items every 7,500 miles at Motorcycle shops in the Chicago suburbs. You can expect tire replacements at 10,000 mile intervals costing roughly $200.00 for a pair installed. The Chain can be expected to last at least 24,000 miles -- replacements are $150+ (including labor).