GT250RFI - Motorcycle HYOSUNG - Free user manual and instructions
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| Product Type | Motorcycle |
| Brand | Hyosung |
| Model | GT250RFI |
| Year | 2011–2015 (approx.) |
| Engine Type | 4-stroke, V-twin, DOHC |
| Displacement | 249 cc |
| Bore x Stroke | 57.0 mm x 48.8 mm |
| Compression Ratio | 11.5:1 |
| Max Power | 28 hp (20.9 kW) @ 10,500 rpm |
| Max Torque | 21.4 Nm @ 8,000 rpm |
| Fuel System | Electronic Fuel Injection (EFI) |
| Cooling System | Liquid-cooled |
| Transmission | 6-speed manual |
| Final Drive | Chain |
| Frame | Steel tube trellis |
| Front Suspension | 41 mm inverted telescopic fork |
| Rear Suspension | Mono-shock with progressive linkage |
| Front Brakes | Single disc, 300 mm, 2-piston caliper |
| Rear Brakes | Single disc, 230 mm, 2-piston caliper |
| Front Tire | 110/70-17 |
| Rear Tire | 150/60-17 |
| Wheelbase | 1,430 mm (56.3 in) |
| Seat Height | 780 mm (30.7 in) |
| Dry Weight | 171 kg (377 lb) |
| Fuel Capacity | 17 L (4.5 US gal) |
| Top Speed | Approx. 140 km/h (87 mph) |
| Oil Capacity | 2.4 L (with filter change) |
| Recommended Oil | SAE 10W-40, API SG or higher |
| Spark Plug | NGK CR8E or equivalent |
| Battery | 12V 8.6Ah (YTX9-BS) |
| Headlight | 12V 55/60W (H4) |
Frequently Asked Questions - GT250RFI HYOSUNG
What type of engine oil does the Hyosung GT250RFI require?
The Hyosung GT250RFI requires SAE 10W-40 engine oil that meets API SG or higher standards. The oil capacity with filter change is approximately 2.4 liters.
What is the recommended tire pressure for the GT250RFI?
Recommended tire pressures are 2.3 bar (33 psi) for the front tire (110/70-17) and 2.5 bar (36 psi) for the rear tire (150/60-17) for solo riding. Adjust for pillion or load.
How often should I change the oil and filter?
Oil and filter should be changed every 4,000 km (2,500 miles) or annually, whichever comes first. Use a quality 10W-40 oil and a genuine or equivalent oil filter.
What is the correct valve clearance adjustment interval?
Valve clearance should be inspected and adjusted every 12,000 km (7,500 miles). For the GT250RFI, intake valves: 0.10–0.15 mm, exhaust valves: 0.15–0.20 mm (cold).
What fuel octane rating is recommended?
Use unleaded gasoline with a minimum octane rating of 91 (RON). Avoid ethanol blends above E10 as they can damage the fuel system.
How do I reset the maintenance light on the dashboard?
To reset the maintenance light, turn the ignition on, press and hold the 'SEL' button on the instrument panel for 3 seconds. The light should turn off. Refer to the manual if it persists.
What is the chain slack specification and how to adjust it?
Chain slack should be 30–40 mm (1.2–1.6 in) at the midpoint. Loosen the rear axle nut and adjust chain tensioners equally, then retighten axle nut to 90 Nm.
Can I install a higher handlebar or aftermarket parts?
Yes, but modification may affect handling and safety. Ensure any aftermarket parts (exhaust, suspension, etc.) are compatible. Re-jetting or ECU remapping may be required after exhaust changes.
What is the spark plug gap and replacement interval?
Spark plug gap is 0.7–0.8 mm. Replace spark plugs every 16,000 km (10,000 miles) or as specified. Use NGK CR8E or equivalent.
Where is the engine number located?
The engine number is stamped on the left side of the engine case, near the clutch cover. The VIN is on the steering head tube.
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USER MANUAL GT250RFI HYOSUNG
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Product information
Brand : HYOSUNG
Model : GT250RFI
Category : Motorcycle