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Model
Identification |
Color |
Bright Orange |
Frame serial # |
F8-00001 - 09533 |
Engine serial # |
F8E00001 - 09785 found on LH top crankcase below air
intake housing. |
Cylinder Mark |
246CC found on LH side |
Engine |
Engine Type |
2 stroke, single cylinder, rotary disc valve, air
cooled. |
Displacement |
246cc |
Bore X Stroke |
68.0 X 68.0 mm |
Compression Ratio |
6.8:1 |
Maximum HP |
23.5 at 6800 rpm |
Maximum torque |
2.64 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 |
1-N-2-3-4-5 bottom up (w/neutral finder) |
Cylinder Material |
Aluminum alloy with ferrous sleeve. |
Gear ratios |
1st |
2.45 (27/11) |
Fuel |
Min 91 Research/87 average oct, unleaded OK |
2nd |
1.71 (24/14) |
Oil |
2-stroke oil for air cooled engines |
3rd |
1.17 (21/18) |
Tuning
Specifications |
4th |
0.90 (18/20) |
Engine |
5th |
0.71 (20/28) |
Cylinder Head Torque |
Nuts |
Cross-tighten : 4.0 kg/m |
Primary Ratio |
3.04 (73/24) |
Bolts |
Cross-tighten : 2.2 kg/m |
Final Ratio |
3.21 (45/14) |
Compression Pressure |
12.0 kg/cm² STD 8.4 kg/cm² service limit |
Overall Ratio (top gear) |
6.98 |
Spark Plug |
NGK B8HCS or B8HS 0.6 - 0.7 mm gap |
Chassis |
Ignition Timing |
20° BTDC (2.59mm) - Flywheel mark aligns with
crankcase pointer at 11 o'clock position |
Wheelbase |
1400 mm |
Point Gap |
0.30 - 0.40 mm |
Ground Clearance |
210 mm |
Air Screw |
1¾ turns out |
Dry Weight |
123 kg |
Idle Speed |
1200 ± 100 RPM |
Fuel Tank Capacity |
12.5 liters |
Transmission Oil |
SE Class SAE 10W30 or 10W40 |
Tire Size |
Front |
3.25-19 4PR Tube-Type |
- Capacity |
1.2 liter |
Rear |
4.00-18 4PR Tube-Type |
- Level |
Motorcycle vertical, off side stand, wait 5 min,
between lines on dipstick, screwed in all the way. |
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 |
175 cc dry |
Rear |
150 X 28 mm |
- Level |
451 ± 4 mm (Fork extended, spring installed) |
Suspension Stroke |
Front |
175 mm (Hatta fork) |
Tire Pressure |
Front |
1.70 kg/cm² cold |
Rear |
100 mm |
Rear |
2.20 kg/cm² cold (normal) |
|
Drive Chain Slack |
About 20 mm (on side stand, tightest point, STD) |