Segment:
Entry-level to intermediate sport ATV.
Target Audience:
Recreational riders, off-road enthusiasts, and those seeking a reliable and fun sport ATV.
Key Competitors:
Honda TRX250X/300EX, Suzuki LT250R/LT-Z250, Kawasaki Mojave 250, Polaris Scrambler 250.
Engine Layout:
Compact, air-cooled, 2-stroke engine, known for its simplicity and power delivery.
Transmission:
6-speed manual with reverse, offering good gear selection for various terrains.
Suspension:
Independent front suspension and a swingarm rear suspension providing balanced handling.
Durability:
Renowned for its robust construction and reliability, making it a popular choice for a long ownership period.
Applicable Years:
1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Estimated Page Count:
Hundreds (Detailed, with photos & diagrams)
Type:
Factory Service Repair Workshop Manual
Delivery Method:
PDF Download
Digital Compatibility:
Windows & MAC Computers, Tablets, Smartphones
Usage Rights:
Lifetime Use, No Expiry Dates, No Renewal Fees
Copying Rights:
Printable (Single pages or entire manual)
Device Compatibility:
Installable on Unlimited Devices
Engine Mechanical:
Complete disassembly, inspection, repair, and reassembly of the entire engine. Includes top-end (cylinder, piston, rings, head) and bottom-end (crankshaft, connecting rod, bearings).
Fuel System:
Carburetor (Mikuni VM26SS) overhaul, adjustment, troubleshooting, jetting, and fuel pump service.
Ignition System:
CDI system, ignition coil, stator, spark plug specifications, timing, and troubleshooting.
Cooling System:
Air-cooling system maintenance, cooling fins, and general engine temperature management.
Transmission Clutch:
Operation of the 6-speed manual transmission with reverse. Clutch inspection, adjustment, friction plates, and gear engagement.
Drivetrain:
Chain drive system, sprocket inspection and replacement, lubrication, and adjustment.
Suspension:
Front and rear suspension systems, shock absorbers, springs, A-arms, swingarm, bushings, and adjustment procedures.
Brakes:
Hydraulic disc brake systems (front and rear), caliper overhaul, brake pad replacement, fluid bleeding, master cylinder service, and brake hose inspection.
Steering:
Handlebar, steering stem, tie rods, steering knuckles, bearings, and lubrication.
Electrical System:
Wiring diagrams, lighting (headlight, taillight, brake light), battery maintenance, fuses, switches, and basic electrical troubleshooting.
Wheels Tires:
Wheel hub inspection, tire pressure recommendations, tire wear inspection, and wheel bearing service.
Bodywork Chassis:
Frame inspection, plastic body panel removal and installation, seat, fenders, and general chassis maintenance.
Routine Maintenance:
Oil changes, filter replacements, air filter cleaning/replacement, spark plug checks, chain lubrication and adjustment, brake adjustments, and general inspection.
Troubleshooting:
Systematic diagnostic procedures for common and uncommon issues, covering engine performance, electrical faults, starting problems, and operational issues.
Repair Procedures:
Step-by-step instructions for component removal, repair, and reinstallation for all major systems.
Rebuilds:
Detailed instructions for engine and carburetor rebuilds.
Adjustments:
Carburetor idle speed and mixture, clutch cable, throttle cable, brake levers, and suspension settings.
Depth:
Comprehensive, suitable for professional mechanics and DIY enthusiasts. Covers everything from basic checks to complete engine overhauls and complex troubleshooting.
Type:
2-stroke, reed valve, air-cooled
Displacement:
195cc ( Bore x Stroke: 66.0 mm x 57.0 mm)
Compression Ratio:
6.6:1 (typical, may vary slightly by year)
Bore X Stroke:
66.0 mm x 57.0 mm
Cooling:
Forced air cooling
Horsepower:
Approx. 14-16 HP (at crankshaft, varies by tuning and year)
Torque:
Approx. 13-15 lb-ft (at crankshaft, varies by tuning and year)
Carburetor Model:
Mikuni VM26SS
Fuel Type:
Unleaded gasoline (minimum 87 octane recommended)
Fuel Mixture:
Pre-mix 2-stroke oil and gasoline (typically 20:1 or 50:1 depending on oil type and manufacturer recommendation, manual will specify exact ratio).
Engine Oil Change:
Every 1000 km or 6 months, whichever comes first (refer to manual for specific recommendations based on usage).
Air Filter Cleaning:
Every 20 hours of operation or monthly, depending on dust conditions.
Spark Plug Inspection:
Every 1000 km or 6 months.
Chain Lubrication:
Every 500 km or after riding in wet conditions.
Engine Oil:
Yamalube 4 (4-stroke motorcycle oil) SAE 10W-30 API SG, SH, SJ, SL, SM or SAE 20W-40 API SG, SH, SJ, SL, SM. Check manual for specific viscosity recommendations based on ambient temperature.
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid.
2 Stroke Oil:
High-quality 2-stroke motorcycle oil, specifically designed for air-cooled engines and the recommended mix ratio (typically 20:1 or 50:1).
Carburetor Fouling:
Common with 2-stroke engines, especially with infrequent use or poor fuel quality. Requires regular cleaning and proper jetting.
Clutch Wear:
Friction plates can wear over time, especially with aggressive riding. Clutch adjustment is crucial.
Carb Jet Clogging:
Small jets can easily become clogged with debris, affecting performance. Fuel filtration is important.
Suspension Bushings:
Rubber bushings in the A-arms and swingarm can degrade over time, leading to play and affecting handling. Replacement is part of regular maintenance.
Chain And Sprockets:
Wear on the drive chain and sprockets is normal; requires regular cleaning, lubrication, and eventual replacement.