T105 (1998) - Scooter YAMAHA - Free user manual and instructions
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| Product Type | Scooter |
| Brand | Yamaha |
| Model | T105 (1998) |
| Year | 1998 |
| Engine Type | 2-stroke, single cylinder, air-cooled |
| Displacement | 49 cc |
| Cooling System | Air-cooled |
| Transmission | Automatic CVT |
| Fuel System | Carburetor |
| Start System | Electric and kick start |
| Front Brake | Disc brake |
| Rear Brake | Drum brake |
| Tire Size (Front) | 120/70-12 |
| Tire Size (Rear) | 130/70-12 |
| Dimensions (L x W x H) | 1800 mm x 700 mm x 1120 mm |
| Seat Height | 750 mm |
| Curb Weight | 78 kg |
| Fuel Capacity | 5.5 L |
| Max Power | 4.0 hp @ 7000 rpm |
| Max Speed | 50 km/h (approx.) |
| Recommended Oil | 2-stroke oil (premixed or separate injection) |
| Spark Plug | NGK BPR6HS (or equivalent) |
| Documentation | User manual in PDF (free download) |
Frequently Asked Questions - T105 (1998) YAMAHA
How do I start the Yamaha T105?
Ensure the fuel valve is ON, insert the key and turn to ON. For a cold start, use the choke and either press the electric start button or use the kick starter. Do not rev the engine immediately.
What type of fuel should I use?
Use unleaded gasoline with an octane rating of 91 or higher. The T105 requires a 50:1 petrol-to-oil ratio if using premix, or ensure the oil injection system is filled with 2-stroke oil.
How often should I change the transmission oil?
The transmission oil (gear oil) should be changed every 2,000 km or every 6 months, whichever comes first. Use SAE 80W-90 oil.
What is the correct tire pressure?
Front tire pressure should be 1.5 bar (22 psi), rear tire 1.75 bar (25 psi) for solo riding. Adjust for passenger or load.
How do I clean the air filter?
Remove the air filter cover and take out the foam filter. Clean with soapy water or a non-flammable solvent, let dry completely, then lightly oil with air filter oil. Replace if damaged.
What type of engine oil does the T105 use?
The T105 uses 2-stroke oil for the engine. If premixing, use a 50:1 ratio. The oil injection tank (if equipped) must be filled with high-quality 2-stroke oil.
How to adjust the carburetor?
The carburetor has an idle speed screw and an air mixture screw. Standard idle speed is about 1500-1700 rpm. For detailed adjustment, refer to the manual.
What is the recommended spark plug gap?
The spark plug gap should be set to 0.6 mm (0.024 inches). Use a gapper tool to adjust. Replace spark plug every 5,000 km.
How to replace the brake pads?
For the front disc brake, remove the caliper pins and slide out the old pads. Install new pads, ensuring they are seated correctly. For rear drum brake, adjust the star adjuster inside the drum. Check thickness regularly.
Where can I find a replacement parts?
Replacement parts for the Yamaha T105 can be found at Yamaha dealerships, online scooter parts stores, or through specialized 2-stroke scooter suppliers. Common parts like brake shoes, spark plugs, and tires are widely available.
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