LTMX
Category: Motocross
Manufacturer: Yamaha
Hits: 940
| Year | 1973 |
| Engine Class | 100 |
| VIN Prefix | LT2 |
| Known VIN Range (Vehicle ID Numbers) | 105101 to 113130 |
| Tank Color(s) | Silver Dust |
| Country of Sale | USA |
| Bore (MM) | 52 |
| Stroke (MM) | 45.6 |
| Displacement (CC) | 97 |
| Compression Ratio (to 1) | 7.8 |
| BHP @ RPM | 16 @ 10,500 |
| Torque (kgm) @ RPM | 1.12 @ 9,500 |
| Autolube Injection? | Yes |
| Engine Cooling | Air |
| Carburetor Model | VM26SH |
| Ignition Type | Magneto |
| Ignition Timing MM (BTDC) | 2.0 |
| Primary Drive Gearing | 3.9 |
| Final Drive Gearing (Sprockets) | 52/14 |
| Box Gearing First | 2.83 |
| Box Gearing Second | 1.88 |
| Box Gearing Third | 1.37 |
| Box Gearing Fourth | 1.09 |
| Box Gearing Fifth | .96 |
| Fuel Capacity (L) | 6 |
| 2 Stroke Oil Tank Capacity (L) | 1.23 |
| Gearbox Oil Capacity | 0.70 |
| Fork Oil Capacity (CC/Fork Leg) | 136 |
| Front Tire (stock) | 2.75 x 19 |
| Rear Tire (stock) | 3.00 x 18 |
| Front Brake Type | Drum |
| Rear Brake Type | Drum |
| Rear Suspension | Twin Shock |
| Overall Width (mm) | 800 |
| Ground Clearance (mm) | 220 |
| Wheelbase (mm) | 1,255 |
| Dry Weight (kg) | 80 |
| Spark Plug | B-9HV |
| Carburetor Type | VM26SH |
| Main Jet | 160 |
| Needle Jet | 0-2 |
| Jet Needle | 4F15-3 |
| Slide Cutaway | 1.0 |
| Pilot Jet | 40 |
| Air Screw (turns out) | 1.25 |
| Float Level (mm) | 25.7 |