J = US
K = EUR/JAPAN
Specifications
ENGINE
Engine type Liquid-cooled, 4-stroke Parallel Twin
Displacement 249 cm³
Bore x stroke 62.0 x 41.2 mm
Compression ratio 11.6:1
Valve/Induction system DOHC, 8 valves
Fuel system Carburettor: Keihin CVK30 x 2 (EX250J)
Fuel injection: ø28 mm x 2 (Keihin),
dual throttle valves (EX250K)
Ignition Digital
Starting Electric
Lubrication Forced lubrication, wet sump
DRIVETRAIN
Transmission 6-speed, return
Final Drive Sealed chain
Primary reduction ratio 3.087 (71/23)
Gear ratios: 1st 2.600 (39/15)
Gear ratios: 2nd 1.789 (34/19)
Gear ratios: 3rd 1.409 (31/22)
Gear ratios: 4th 1.160 (29/25)
Gear ratios: 5th 1.000 (27/27)
Gear ratios: 6th 0.893 (25/2
Final reduction ratio 3.214 (45/14) (EX250J)
3.071 (43/14) (EX250K)
Clutch Wet multi-disc, manual
FRAME
Frame type Tube diamond, steel
Wheel travel, front 120 mm
Wheel travel, rear 130 mm
Tyre, front 110/70-17 M/C (54S)
Tyre, rear 130/70-17 M/C (62S)
Rake/Trail 26° / 83 mm
Steering angle, left / right 35° / 35°
SUSPENSION
Suspension, front 37 mm telescopic fork
Suspension, rear Bottom-Link Uni-Trak with gas-charged shock and
5-way adjustable preload
BRAKES
Brakes, front Single 290 mm petal disc.
Caliper: Single balanced actuation dual-piston.
Brakes, rear Single 220 mm petal disc.
Caliper: Dual-piston.
DIMENSIONS
Dimensions (L x W x H) 2,080 mm x 710 mm x 1,115 mm
Wheelbase 1,390 mm (EX250J)
1,400 mm (EX250K)
Ground Clearance 135 mm
Seat height 780 mm
Dry weight 151 kg (EX250J)
152 kg (EX250K)
Fuel capacity 18 litres (EX250J)
17.5 litres (EX250K)
PERFORMANCE
Maximum power 23.5 kW {32 PS} / 11,000 rpm (EX250J)
22.2 kW {30 PS} / 10,500 rpm (EX250K)
Maximum torque 21.7 N·m {2.21 kgf·m} / 10,000 rpm (EX250J)
21.0 N·m {2.14 kgf·m} / 8,500 rpm (EX250K)
Starting on a 250 has never been better.
old model for comparison
