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Model
Identification |
| Color |
1- Firecracker Red 2- Brilliant Blue |
| Frame serial # |
G5-134101 - 144573 |
| Engine serial # |
G5E134801 - 145820 found on LH side crankcase below
air intake duct. |
| Cylinder Mark |
0.99 l found on
LH side |
| Engine |
| Engine Type |
2 stroke, single cylinder, rotary disc valve, air
cooled. |
| Displacement |
99cc |
| Bore X Stroke |
49.5 X 51.8 mm |
| Compression Ratio |
6.9:1 |
| Maximum HP |
11 at 7500 rpm |
| Maximum torque |
1.1 kg-m at 7000 rpm |
| Carburetor |
Teikei E19PK-1A |
| Lubrication System |
Superlube (port 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 |
Cylinder Material |
Aluminum alloy with Electro fusion bore |
| Gear ratios |
1st |
2.92 (35/12) |
Fuel |
Min 91 Research/87 average oct |
| |
2nd |
1.76 (30/17) |
Oil |
2-stroke oil for air cooled engines |
| |
3rd |
1.30 (26/20) |
Tuning
Specifications |
| |
4th |
1.09 (24/22) |
Engine |
| |
5th |
0.96 (23/24) |
Cylinder Head Torque Nuts |
Cross-tighten: 2.2 kg-m |
| Primary Ratio |
3.52 (74/21) |
| Final Ratio |
2.80 (42/15) |
Compression Pressure |
9.8 kg/cm² STD 6.9 kg/cm² service limit |
| Overall Ratio |
9.16 top gear |
Spark Plug |
NGK B8ES 0.7 - 0.8 mm gap |
| Chassis |
Ignition Timing |
23° BTDC (2.58mm) - Flywheel mark aligns with
crankcase mark at 12 o'clock position |
| Wheelbase |
1260 mm |
Point Gap |
0.30 - 0.40 mm |
| Seat Height |
805 mm |
Air Screw |
Sealed - not adjustable |
| Ground Clearance |
240 mm |
Idle Speed |
Lowest stable RPM (usually 1300 ± 100 RPM) |
| Dry Weight |
92 kg 150kg max. recommended load |
Transmission Oil |
SE Class SAE 10W30 or 10W40 |
| Fuel Tank Capacity |
8.0 liters |
- Capacity |
0.6 liter |
| Tire Size |
Front |
2.75-19 4PR Tube-Type |
- Level |
Idle, stop for 5 min, Motorcycle vertical, just runs
out of level screw hole |
| Rear |
3.00-18 4PR Tube-Type |
Chassis |
| Brake Type |
Front |
Mechanical Drum (Leading/Trailing) |
Fork Oil |
SAE 10W |
| Rear |
Mechanical Drum (Leading/Trailing) |
- Capacity |
162 cc dry |
| Brake Size |
Front |
110 X 30 mm |
- Level |
409 ± 4 mm (Fork extended, spring removed) |
| Rear |
110 X 30 mm |
Tire Pressure |
Front |
1.75 kg/cm² cold |
| Suspension Stroke |
Front |
145 mm |
Rear |
1.75 kg/cm² cold (Normal 0 - 97.5 kg) 2.25 kg/cm²
cold (Heavy 97.5 - 150 kg) |
| Rear |
90 mm |
Drive Chain Slack |
15 - 25 mm (On side stand, tightest point, STD) |
