Yamaha GX400
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| Yamaha GX400 | |
| Manufacturer | |
|---|---|
| Production | 1977 |
| Class | Standard |
| Engine | Four stroke, parallel twin |
| Compression ratio | 9.2:1 |
| Horsepower | 37.01 HP (27.6 KW) @ 8800RPM |
| Torque | 24.34 ft/lbs (33.0 Nm) @ 8000RPM |
| Transmission | 6 Speed |
| Suspension | Front: Telescopic forks Rear: Dual shocks |
| Brakes | Front: Single disc Rear: Single disc |
| Front Tire | 3.00-18 |
| Rear Tire | 3.50-18 |
| Weight | 168 kg (dry), |
| Recommended Oil | Yamalube 10w-40 |
| Manuals | Service Manual |
The Yamaha GX 400 was a Four stroke, parallel twin, air cooled Classic motorcycle produced by Yamaha in 1978. Max torque was 24.34 ft/lbs (33.0 Nm) @ 8000 RPM. Claimed horsepower was 37.01 HP (27.6 KW) @ 8800 RPM.
Engine[edit | edit source]
The engine was a Air cooled cooled Four stroke, parallel twin. The engine featured a 9.2:1 compression ratio.
Chassis[edit | edit source]
It came with a 3.00-18 front tire and a 3.50-18 rear tire. Stopping was achieved via Single disc in the front and a Single disc in the rear. The front suspension was a Telescopic forks while the rear was equipped with a Dual shocks. The GX400 was fitted with a fuel tank. The bike weighed just 168 kg.
1978 Yamaha GX 400[edit | edit source]
1978 Yamaha GX 400
1978 Yamaha GX 400
1978 Yamaha GX 400
It had a small body same as GX250, which was its series model. Its square body was inherited from the RD series, the 2-stroke road bike.
Photos[edit | edit source]
Specifications[edit | edit source]
| Make Model | Yamaha GX 400 |
|---|---|
| Year | 1977 |
| Engine Type | Four stroke, parallel twin |
| Displacement | 391 |
| Bore X Stroke | 69 х 52.4 mm |
| Cooling System | Air cooled |
| Compression | 9.2:1 |
| Induction | Carburetor |
| Starting | Kick |
| Max Power | 37 hp @ 8800 rpm |
| Max Torque | 3.2 @ 8000 rpm |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Front Suspension | Telescopic forks |
| Rear Suspension | Dual shocks |
| Front Brakes | Single disc |
| Rear Brakes | Single disc |
| Front Tire | 3.00-18 |
| Rear Tire | 3.50-18 |
| Dry Weight | 168 kg |
| Fuel Capacity |