The 1986 Honda Fourtrax 250 is a reliable all-terrain vehicle featuring a 246cc four-stroke engine, shaft drive system, front and rear suspension, electric start, and durable construction. This parts manual provides comprehensive information for maintenance, repair, and replacement of all components. Below are key sections covering specifications, engine parts, chassis components, electrical systems, and maintenance procedures.
Complete technical specifications for the 1986 Honda Fourtrax 250 ATV.
| Specification | Details |
|---|---|
| Engine Type | 246cc air-cooled four-stroke OHC single cylinder |
| Bore x Stroke | 74.0mm x 57.8mm |
| Compression Ratio | 9.2:1 |
| Carburetor | 22mm piston-valve type |
| Starting System | Electric and auxiliary recoil |
| Transmission | 5-speed with reverse |
| Drive System | Shaft drive |
| Suspension Front | Double wishbone |
| Suspension Rear | Swingarm |
| Brakes Front/Rear | Drum brakes |
| Tires Front | 22 x 11-8 |
| Tires Rear | 22 x 11-8 |
| Fuel Capacity | 2.6 gallons |
| Dry Weight | 386 lbs |
Complete breakdown of engine parts and assembly.
WARNING! Always disconnect battery and drain fluids before engine disassembly. Use proper torque specifications during reassembly.
Frame components and structural parts.
CAUTION! Inspect frame for cracks or damage regularly. Replace damaged components immediately.
Front and rear brake components and maintenance.
Front Brakes: Mechanical drum brakes, brake shoes, cables, levers
Rear Brakes: Mechanical drum brakes, parking brake mechanism
Brake Drums: Cast iron drums, inspection specifications
Brake Cables: Front and rear brake cables, adjusters
Brake Levers: Handlebar levers, pivot points, return springs
Complete electrical components and wiring.
Tip: Always disconnect battery before electrical work. Use multimeter for testing circuits.
Shaft drive system components.
WARNING! Always check drive shaft boot condition. Replace worn boots to prevent dirt contamination.
Fuel delivery components and maintenance.
Fuel Tank: 2.6 gallon plastic tank, cap, mounting
Carburetor: 22mm Keihin, jets, float assembly
Fuel Lines: Supply and return lines, clamps
Air Filter: Foam element, housing, intake tube
Recommended maintenance intervals and procedures.
| Service Interval | Maintenance Items |
|---|---|
| Every 100 miles/1 month | Check tire pressure, brake operation, fluid levels |
| Every 500 miles/6 months | Change engine oil, clean air filter, inspect brakes |
| Every 1,000 miles/12 months | Change oil filter, check valve clearance, inspect drive shaft |
| Every 2,000 miles/24 months | Replace spark plug, check wheel bearings, inspect suspension |
Genuine Honda parts ordering information.
Use Honda part numbers when ordering replacements. Contact authorized Honda dealers for genuine parts. Cross-reference part numbers in this manual with current availability.
CAUTION! Use only genuine Honda parts for optimal performance and safety.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Engine won't start | Fuel, spark, compression | Check fuel flow, spark plug, compression test |
| Poor performance | Clogged air filter, carb issues | Clean air filter, inspect carburetor jets |
| Electrical failure | Battery, connections, stator | Test battery voltage, check connections, stator output |
| Brake issues | Worn shoes, cable adjustment | Inspect brake shoes, adjust cables |
| Transmission problems | Low oil, worn gears | Check oil level, inspect transmission |
Service: Contact authorized Honda service center for complex repairs.
Parts Support: Genuine Honda parts available through authorized dealers.