2007 Husqvarna TC250
General Specifications
| Model | Husqvarna TC250 |
| Year | 2007 |
| Category | Motocross |
| Engine Type | Single-cylinder, liquid-cooled, 4-stroke, DOHC, 4-valve |
| Weight | 104.7 kg kerb weight without fuel |
Engine
| Displacement | 249.5 cc |
| Bore x Stroke | 76.0 x 55.0 mm |
| Compression Ratio | 12.9:1 |
| Fuel System | Keihin FCR-MX 37 mm flat-slide carburettor with accelerator pump and TPS | Replacement Options |
| Ignition | Electronic CDI with digitally controlled variable advance |
| Spark Plug | NGK CR8EB |
| Spark Plug Gap | 0.7 mm |
| Cooling System | Liquid cooled with pump circulation and twin radiators |
| Starting System | Kick starter with automatic decompressor |
Transmission
| Transmission | 5-speed constant-mesh manual |
| Clutch | Wet multi-plate, hydraulically operated |
| Final Drive | Chain |
Dimensions
| Overall Length | 2200 mm |
| Overall Width | 820 mm |
| Overall Height | 1270 mm |
| Wheelbase | 1485 mm |
| Ground Clearance | 335 mm |
| Seat Height | 970 mm |
| Fuel Capacity | 9.2 L |
Chassis
Suspension
| Front Suspension | 45 mm Marzocchi upside-down closed-cartridge hydraulic fork, adjustable for compression and rebound damping | Fork Oil Levels |
| Front Suspension Travel | 300 mm |
| Rear Suspension | Öhlins hydraulic monoshock with progressive linkage, adjustable for spring preload, compression and rebound damping |
| Rear Suspension Travel | 320 mm |
| Fork Oil | SAE 5 fork oil; factory oil level 100 mm with fork fully compressed and spring removed |
Brakes & Wheels
| Front Brake | 260 mm hydraulic single disc with floating 2-piston caliper |
| Rear Brake | 240 mm hydraulic single disc with floating caliper |
| Front Wheel Size | 1.60 x 21 in light-alloy rim |
| Rear Wheel Size | 2.15 x 19 in light-alloy rim |
Service Data
| Fuel Type | Premium unleaded petrol |
| Premix Information | Not applicable - 4-stroke engine |
| Gearbox Oil | Engine, gearbox and primary drive share AGIP Racing 4T 10W-60 motorcycle oil |
| Air Filter | Oiled foam air filter |
| Service Notes | Competition motocross model with dry-sump lubrication and cartridge oil filter. Cold valve clearance: 0.10-0.15 mm inlet and 0.15-0.20 mm exhaust. Change engine oil and filter frequently, service the air filter after dusty riding and regularly inspect valve clearance, cam chain, clutch, cooling system, drive chain and chassis bearings. |
2007 Husqvarna TC250 – Refining the High-Revving Italian Four-Stroke
The 2007 Husqvarna TC250 was an evolutionary update rather than a completely new generation. The major engine and chassis work had arrived with the 2006 model, so Husqvarna concentrated on refining the established 249.5cc DOHC four-stroke package. The short-stroke 76.0 x 55.0 mm engine retained its high 12.9:1 compression ratio, five-speed motocross gearbox and kick-start-only competition layout.
Fuel delivery continued through a Keihin FCR-MX flat-slide carburettor with an accelerator pump and throttle-position sensor. These carburettors can work extremely well when correctly set up, but wear in the slide, accelerator-pump circuit or pilot system can make an older TC250 difficult to start or hesitant off idle. Owners restoring the original induction system can compare replacement carburettor options when components are no longer serviceable.
The suspension remained distinctly European, with a 45 mm Marzocchi closed-cartridge inverted fork providing around 300 mm of travel and an Öhlins shock working through the progressive rear linkage. Correct fork oil condition and level are important on surviving bikes, and the MXOwners fork oil reference is useful when servicing the original front suspension.
For today's owner, maintenance history matters greatly. Regular oil and filter changes, accurate valve clearances, cam-chain condition and air-filter sealing are all critical on a high-revving competition four-stroke. Wheel, steering-head and linkage bearings also deserve inspection after years of motocross use, and the MXOwners Bearing Finder can help during a chassis rebuild. The 2007 TC250 was not a radical redesign, but it represented a mature version of Husqvarna's first-generation compact 250 four-stroke motocrosser.
