 |
Model
Identification |
| Color |
1- Candy Blue 2- Candy Orange |
| Frame serial # |
F11-31686 - 42637 |
| Engine serial # |
F11E31700 - 42689 found on RH top crankcase, below carburetor. |
| Cylinder Mark |
246CC found on RH side |
| Engine |
| Engine Type |
2 stroke, single cylinder, piston-valve, air cooled. |
| Displacement |
246cc |
| Bore X Stroke |
68.0 X 68.0 mm |
| Compression Ratio |
6.4:1 |
| Maximum HP |
22 at 6500 rpm |
| Maximum torque |
2.6 kg-m at 6000 rpm |
| Carburetor |
Mikuni VM30SS |
| Lubrication System |
Injectolube (port & crank injection) |
| Transmission |
Ignition System |
Flywheel magneto |
| Clutch Type |
Wet, multi-disc, Manual |
Ignition Advance |
Fixed |
| Transmission |
5-speed, constant mesh, return shift |
Crankshaft Rotation |
Counterclockwise from ignition (LH) side |
| Shift Pattern (Bottom Up) |
1-N-2-3-4-5 |
Cylinder Material |
Aluminum alloy with ferrous sleeve. |
| Gear ratios |
1st |
2.23 (29/13) |
Fuel |
Min 91 Research/87 average oct, unleaded OK |
| 2nd |
1.47 (25/17) |
Oil |
2-stroke oil for air cooled engines |
| 3rd |
1.10 (22/20) |
Tuning
Specifications |
| 4th |
0.91 (20/22) |
Engine |
| 5th |
0.75 (18/24) |
Cylinder Head Torque |
Nuts |
Cross-tighten : 4.2 kg/m |
| Primary Ratio |
3.00 (72/24) |
Bolts |
Cross-tighten : 2.0 kg/m |
| Final Ratio |
3.38 (44/13) |
Compression Pressure |
7.5 kg/cm² STD 5.3 kg/cm² service limit |
| Overall Ratio (top gear) |
7.61 |
Spark Plug |
NGK B9HCS or B9HS 0.6 - 0.7 mm gap |
| Chassis |
Ignition Timing |
20° BTDC (2.56mm) - Flywheel mark aligns with
crankcase pointer at 12 o'clock position |
| Wheelbase |
1387 mm |
Point Gap |
0.30 - 0.40 mm |
| Ground Clearance |
250 mm |
Air Screw |
1½ turns out |
| Dry Weight |
120 kg |
Idle Speed |
1250 ± 50 RPM |
| Fuel Tank Capacity |
9.5 liters |
Transmission Oil |
SE Class SAE 10W30 or 10W40 |
| Tire Size |
Front |
3.00-21 4PR Tube-Type |
- Capacity |
1.2 liter |
| Rear |
4.00-18 4PR Tube-Type |
- Level |
Motorcycle vertical, off stand, wait 5 min, between
lines on dipstick, not screwed in. |
| Brake Type |
Front |
Mechanical Drum (Leading/Trailing) |
Chassis |
| Rear |
Mechanical Drum (Leading/Trailing) |
Fork Oil |
SAE 10W |
| Brake Size |
Front |
150 X 28 mm |
- Capacity |
170 cc dry |
| Rear |
150 X 28 mm |
- Level |
425 ± 4 mm (Fork extended, spring installed) |
| Suspension Stroke |
Front |
175 mm |
Tire Pressure |
Front |
1.70 kg/cm² cold |
| Rear |
100 mm |
Rear |
2.20 kg/cm² cold (normal) |
| |
Drive Chain Slack |
15 - 20 mm (on side stand, tightest point, STD) |
