CT1C (close ratio)
Category: Enduros
Manufacturer: Yamaha
Hits: 650
| Year | 1971 |
| Engine Class | 175 |
| Known VIN Range (Vehicle ID Numbers) | 200101 to 202200 |
| Model Code | CT1 |
| Tank Color(s) | Candy Orange |
| Country of Sale | USA |
| Bore (MM) | 66 |
| Stroke (MM) | 50 |
| Displacement (CC) | 171 |
| Compression Ratio (to 1) | 6.8 |
| BHP @ RPM | 15 @ 7,000 |
| Torque (kgm) @ RPM | 1.64 @ 5,500 |
| Autolube Injection? | Yes |
| Engine Cooling | Air |
| Carburetor Model | VM24SH |
| Ignition Type | Magneto |
| Ignition Timing MM (BTDC) | 1.8 |
| Primary Drive Gearing | 3.9 |
| Final Drive Gearing (Sprockets) | 45/14 |
| Fuel Capacity (L) | 7 |
| 2 Stroke Oil Tank Capacity (L) | 1.37 |
| Gearbox Oil Capacity | .74 |
| Fork Oil Capacity (CC/Fork Leg) | 160 |
| Front Tire (stock) | 3.25 x 18 |
| Rear Tire (stock) | 3.50 x 18 |
| Front Brake Type | Drum |
| Rear Brake Type | Drum |
| Rear Suspension | Twin Shock |
| Overall Width (mm) | 910 |
| Ground Clearance (mm) | 240 |
| Wheelbase (mm) | 1,290 |
| Dry Weight (kg) | 96 |
| Spark Plug | NGK B8ES |
| Voltage | 6 Volt |
| Comments | This model had Close ratio transmission 16/37 sprockets |