Positioning:
The 2000 Husqvarna CR 250 and WR 250-360 represented Husqvarna's commitment to performance off-road motorcycles in the highly competitive motocross and enduro markets of the late 1990s and early 2000s.
Competitors:
Competed against major Japanese manufacturers like Yamaha (YZ series), Suzuki (RM series), Honda (CR series), Kawasaki (KX series), and KTM in their respective classes.
Features:
Known for potent two-stroke engines, capable chassis, and robust suspension (often WP components), appealing to riders seeking performance and a distinct European off-road experience.
Engine Mechanical:
Complete engine overhaul, cylinder head, piston, crankshaft, connecting rod, seals, gaskets, timing, carburetor (Mikuni VM series typically for this era).
Cooling System:
Liquid cooling system diagnosis and repair (radiators, hoses, water pump).
Fuel System:
Fuel tank, fuel lines, petcock, carburetor assembly and tuning.
Ignition System:
CDI ignition system, stator, coil, spark plug, wiring.
Exhaust System:
Exhaust pipe, silencer maintenance and installation.
Transmission Drivetrain:
Gearbox disassembly, assembly, troubleshooting, clutch, chain drive maintenance.
Suspension Front:
Front fork (e.g., WP brand) service, oil changes, seal replacement, damping adjustments.
Suspension Rear:
Monoshock rear suspension, linkage maintenance, shock absorber service and adjustment.
Brakes Front:
Hydraulic disc brake system, caliper, master cylinder, brake pads, fluid replacement.
Brakes Rear:
Hydraulic disc brake system, caliper, master cylinder, brake pads, fluid replacement.
Wheels Hubs:
Wheel bearing service, hub maintenance, spoke tensioning.
Steering:
Steering head bearings, fork alignment, handlebar replacement.
Electrical System:
Lighting (if applicable), horn, battery (if electric start variant), wiring diagrams.
Bodywork Chassis:
Frame inspection, fuel tank, seat, fenders, plastics, graphics.
Scheduled Maintenance:
Recommended service intervals for oil changes, filter cleaning/replacement, chain lubrication, brake checks.
Engine Rebuild:
Step-by-step procedures for complete engine teardown, inspection, and reassembly.
Suspension Tuning:
Guidance on adjusting damping and spring preload for different riding conditions.
Carburetor Jetting:
Information on main jets, pilot jets, needle settings for optimal performance and altitude adjustments.
Troubleshooting:
Diagnostic charts and procedures for identifying and resolving common operational issues.
Repair Techniques:
Detailed instructions for specific component repairs and replacements.
Wiring Diagrams:
Comprehensive electrical schematics for fault finding and component identification.
Depth:
OEM-level detail, covering everything from basic maintenance and pre-ride checks to complete engine and gearbox rebuilds, suspension servicing, and electrical system diagnostics.
Type:
Liquid-cooled, 2-stroke, single-cylinder (reed valve induction)
Bore Stroke 250:
CR 250: ~66.4 x 72 mm (typical for 250cc 2-stroke)
Bore Stroke 360:
WR 360: ~72 x 86 mm (typical for 360cc 2-stroke)
Displacement 250:
CR 250: ~249 cc
Displacement 360:
WR 360: ~355 cc
Compression Ratio:
Typically around 8.0:1 to 9.0:1, specific values in manual.
Engine Oil Type:
2-stroke pre-mix oil (e.g., Motul 2T, Castrol TTS), specific ratio (e.g., 32:1 or 40:1) detailed in manual.
Transmission Oil Type:
Gearbox oil (e.g., Motul Gear Oil 10W40, 75W/90), specific viscosity and capacity in manual.
Horsepower:
Approx. 45-55 HP for 250cc, higher for 360cc, exact figures in manual.
Torque:
Specific torque figures will be provided in the manual.
Carburetor Model:
Likely Mikuni VM38 or similar for 250cc, potentially larger for 360cc.
Fuel Type:
Unleaded gasoline (91-98 octane recommended), mixed with 2-stroke oil.
Engine Oil Change Frequency:
Gearbox oil change recommended every 10-20 hours of riding or annually. Pre-mix oil is added with fuel.
Air Filter Cleaning:
Frequent cleaning required, often after every few rides depending on conditions. Manual will specify.
Spark Plug Replacement:
Recommended at intervals specified in the manual, typically based on hours or mileage, or when performance degrades.
Chain Maintenance:
Regular cleaning, lubrication, and tension adjustment every 5-10 riding hours or as needed.
Coolant Type:
Ethylene glycol based coolant (50/50 mix with distilled water), specific capacity in manual.
Fork Oil Type:
Specific viscosity fork oil (e.g., WP Suspension Fluid, Motul Fork Oil), volume per leg detailed in manual.
Common Wear Items:
Piston rings, cylinder wear, clutch plates, wheel bearings, steering head bearings, fork seals, swingarm bearings, and shock linkage bearings are common wear items in high-performance dirt bikes.
Potential Problems:
Carburetor jetting sensitivity to altitude and temperature, potential for spark plug fouling if jetted rich or ridden improperly, clutch wear from aggressive use. Manual addresses these.
Cylinder Decarbonization:
Manual will likely detail procedures for cleaning carbon buildup in the combustion chamber and exhaust port.
Clutch Adjustment:
Instructions for adjusting clutch lever free play and ensuring proper engagement/disengagement.
