Mbike - Catalogue. Community. Map.
Catalogue. Community. Map.
Yamaha XJ 900 F 1991 
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Engine and transmission
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| Engine type: | 4 cylinders, 4-stroke, Inline |
| Displacement: | 891 cc (54.44 cubic inches) |
| Bore × stroke: | 2.7 inch × 2.38 inch (oversquare - shortstroke) |
| Cooling system: | Air cooled |
| Power: | 97.21 HP (71.5 kW) @ 9000 rpm |
| Throttle: | Cable operated |
| Valves | |
| Valve train: | DOHC, variable |
| Valves per cylinder: | 2 |
| Fuel and ignition | |
| Sparks per cylinder: | 1 |
| Fuel supply system: | Carburetor |
| Ignition type: | TCI (Transistor Controlled Ignition) |
| Compression: | 9.6:1 |
| Engine mounting: | Transverse |
| Lubrication system: | Wet sump |
| Gear box: | Manual 5-speed |
| Clutch: | Wet, multiple discs, cable operated |
| Final drive: | Shaft |
| Spark plug pipe type: | NGK, BPR8ES |
| Motor oil: | 20W/40 |
| Starter: | Electric |
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Dimensions
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| Weight | |
| Curb weight: | 533.5 lbs |
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Chassis and suspension
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| Frame type: | steel, Double cradle frame |
| Front | |
| Suspension: | Cartridge |
| Brake: | Twin Disk |
| Tire: | 100 / 90 R18 |
| Tire pressure: | 0.16 PSI, with pillion: 0.17 PSI withpilion |
| Rear | |
| Suspension: | twin shock, Swingarm |
| Brake: | Disk |
| Tire: | 120 / 90 R18 |
| Tire pressure: | 0.17 PSI, with pillion: 0.2 PSI withpilion |
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Other
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| ABS available: | No |
| Power-to-weight ratio: | 0.30 KW/lbs (3.38 lbs/HP) |
| Top speed: | 137.32 mph |
| Fuel capacity: | 5.81 gals |
| Number of riders: | 2 persons |
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