 |
Model
Identification |
| Color |
1- Luminous Midnight Red 2- Ebony |
| VIN Range |
JKAKZML1eCA000001 - 003266 |
| Engine number range |
KZ250DE030501 - 041946, found on RH top crankcase,
behind cylinder. |
| Cylinder Mark |
0.246l found on RH
side |
| Engine |
| Engine Type |
4 stroke, single cylinder, SOHC, air cooled. |
| Displacement |
246cc |
| Bore X Stroke |
70.0 X 64.0 mm |
| Compression Ratio |
8.9:1 |
| Maximum HP |
19 at 8000 rpm |
| Maximum torque |
1.8 kg-m at 7000 rpm |
| Carburetor |
Keihin CV32, constant velocity, diaphragm type |
| Ignition System |
12 Battery & coil, transistorized breaker less |
| Transmission |
Ignition Advance |
Electronic |
| Clutch Type |
Wet, multi-disc, Manual |
Crankshaft Rotation |
Counterclockwise from ignition (LH) side |
| Transmission |
5-speed,constant mesh, return shift |
Cylinder Material |
Aluminum alloy with ferrous sleeve |
| Shift Pattern |
1-N-2-3-4-5 bottom up |
Fuel |
Min 91 Research/87 average oct, unleaded OK |
| Gear ratios |
1st |
2.64 (29/11) |
Tuning
Specifications |
| |
2nd |
1.73 (26/15) |
Engine |
| |
3rd |
1.30 (26/20) |
Cylinder Head Torque |
Head Bolts |
In sequence 1- 1.5 kg/m 2- 2.6 kg/m |
| |
4th |
1.05 (21/20) |
Cylinder Base Bolts |
3- 0.9 kg/m 4- Warm up 5- Retorque cold |
| |
5th |
0.90 (19/21) |
Valve Clearance Cold |
Intake |
0.08 - 0.13 mm |
| Primary Ratio |
3.29 (69/21) |
Exhaust |
0.17 - 0.22 mm |
| Final Ratio |
2.52 (58/23) |
Valve Adjustment Method |
Rocker arm screw |
| Overall Ratio (Top Gear) |
7.50 |
Compression Pressure |
13.0 kg/cm² STD 9.0 kg/cm² service limit |
| Chassis |
Spark Plug |
NGK B7ES or ND W22ES-U 0.7 - 0.8 mm gap |
| Wheelbase |
1340 mm |
Ignition Timing |
Idle |
10° BTDC ("F" mark) at 1,250 rpm |
| Seat Height |
730 mm |
Full |
40° BTDC (in double marks) at 4,000 rpm |
| Ground Clearance |
145 mm |
Air Screw |
Sealed - not adjustable |
| Dry Weight |
130.5 kg |
Idle Speed |
1250 ± 100 rpm |
| Max Recommended Load |
155 kg |
Engine Oil |
SE Class SAE 10W40, 10W50, 20W40, 20W50 |
| Fuel Tank Capacity |
8.0 liters |
- w/filter change |
1.4 liter |
| Tire Size |
Front |
2.75-18 4PR Tube-Type |
- no filter change |
1.1 liter |
| Rear |
120/90-16 63S Tube-Type |
- Level |
On center stand, wait 5 min, middle of window. |
| Brake Type |
Front |
Mechanical Drum (Leading/Trailing) |
- Pressure (hot) |
Approx. 0.4 kg/cm² at 4000 rpm 90°C |
| Rear |
Mechanical Drum (Leading/Trailing) |
Chassis |
| Brake Size |
Front |
150 X 28 mm |
Fork Oil |
SAE 5W20 |
| Rear |
130 X 28 mm |
- Capacity |
160cc dry |
| Suspension Stroke |
Front |
150 mm |
- Level |
434 (Fork extended, spring removed) |
| Rear |
92 mm |
Tire Pressure (cold) |
Front |
1.75 kg/cm² |
| |
Rear (normal) |
1.50 kg/cm² (0 - 97.5 kg) |
| Rear (heavy) |
2.00 kg/cm² (97.5 - 155 kg) |
| Drive Belt Tension |
6.5 - 17 mm deflection (on center stand, apply 4.5
kg of force on belt midway between sprockets) |
