TMX125α (2018) - Motorcycle Honda - Free user manual and instructions
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| Product Type | Motorcycle |
| Brand | Honda |
| Model | TMX125α (2018) |
| Engine Displacement | 124.9 cc |
| Engine Type | Air-cooled, 4-stroke, single cylinder |
| Bore x Stroke | 56.5 mm x 49.5 mm |
| Compression Ratio | 9.2:1 |
| Maximum Power | 9.5 hp @ 8,000 rpm |
| Maximum Torque | 9.5 Nm @ 6,500 rpm |
| Transmission | 5-speed, manual |
| Final Drive | Chain |
| Fuel System | Carburetor |
| Fuel Tank Capacity | 11.5 liters |
| Overall Length | 2,010 mm |
| Overall Width | 735 mm |
| Overall Height | 1,060 mm |
| Wheelbase | 1,320 mm |
| Seat Height | 775 mm |
| Ground Clearance | 150 mm |
| Curb Weight | 120 kg |
| Brakes Front | Single disc, 240 mm |
| Brakes Rear | Drum, 130 mm |
| Tires Front | 2.75-17 |
| Tires Rear | 3.00-17 |
| Ignition System | CDI |
| Battery | 12V, 4Ah |
| Oil Capacity | 1.2 L |
Frequently Asked Questions - TMX125α (2018) Honda
What type of fuel does the Honda TMX125α require?
The Honda TMX125α (2018) requires unleaded gasoline with an octane rating of 91 RON or higher.
How often should I change the engine oil?
Change the engine oil every 3,000 km or 6 months, whichever comes first. Use SAE 10W-30 oil.
What is the recommended tire pressure for the TMX125α?
Recommended tire pressure is 28 psi (front) and 30 psi (rear) for solo riding.
How do I adjust the chain tension?
Park on level ground, loosen the axle nut, adjust chain slack to 25-35 mm, tighten the adjuster nuts, and retighten the axle nut.
What is the spark plug gap for the TMX125α?
The spark plug gap should be 0.6-0.7 mm. Use NGK CR8HSA or equivalent.
How do I clean the air filter?
Remove the air filter element, wash with non-flammable solvent, dry, and apply air filter oil. Replace every 12,000 km.
What is the break-in procedure for a new TMX125α?
For the first 1,000 km, avoid prolonged full throttle, vary engine speed, and do not exceed 5,500 rpm.
How do I check the battery electrolyte level?
Remove the battery caps and ensure the electrolyte covers the plates. Add distilled water if necessary. Avoid overfilling.
What should I do if the engine overheats?
Stop the engine immediately, let it cool, check coolant level (if liquid-cooled) or ensure oil level is adequate. For air-cooled, check for obstructions.
Where can I find the VIN number on the TMX125α?
The VIN is stamped on the right side of the steering head and also on the frame near the engine.
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