Homelite XL 12 Chainsaw Parts Manual

The Homelite XL 12 is a lightweight, gasoline-powered chainsaw designed for general-purpose cutting, limbing, and pruning. This manual provides a comprehensive parts list and exploded diagrams for the engine assembly, cutting system, fuel system, ignition system, and controls to assist with maintenance, repair, and part identification. Below are key sections for safety, specifications, parts identification, assembly diagrams, and ordering information.

Features at a Glance

Key components: 2-cycle gasoline engine, 12-inch guide bar and chain, manual oiler, anti-vibration handle, chain brake, and automatic chain lubrication system.

Safety Information

Always wear appropriate personal protective equipment (PPE) including safety glasses, hearing protection, gloves, chainsaw chaps, and sturdy boots.

1. Read the operator's manual before use.
2. Inspect the chainsaw before each use for loose parts, damaged components, or fuel leaks.
3. Ensure the chain brake is functioning properly.
4. Use the correct fuel/oil mixture (40:1 ratio with 2-cycle oil).
5. Keep bystanders and pets at a safe distance.

WARNING! Operating a chainsaw can be dangerous. Never operate when fatigued or under the influence of drugs or alcohol. Always maintain a firm grip with both hands.

Specifications

• Model: Homelite XL 12
• Engine: 2-cycle, single cylinder
• Power Output: Approximately 1.5 HP
• Fuel: Unleaded gasoline mixed with 2-cycle oil (40:1)
• Bar Types: Laminated steel, 12" standard
• Chain Type: Safety chain with low-kickback design
• Chain Tensioning: Side-mounted, tool-less adjustment
• Lubrication: Automatic and manual oiler system
• Spark Plug: Champion RCJ-6Y or equivalent
• Warranty: Refer to original purchase documentation

Engine Assembly Parts

Cylinder, piston, crankshaft, connecting rod, bearings, seals, and crankcase components.

1. Cylinder Assembly: Includes cylinder, fins, and mounting studs.
2. Piston Assembly: Piston, rings, wrist pin, and circlips.
3. Crankshaft: Main shaft with integrated counterweights.
4. Crankcase: Upper and lower halves with gasket.
5. Bearings & Seals: Main bearings, crankshaft seals.
6. Recoil Starter Assembly: Pulley, spring, rope, handle.

Note: Always replace gaskets and seals during engine reassembly.

Cutting System Parts

Guide bar, chain, drive sprocket, clutch, and chain tensioner.

1. Guide Bar: 12-inch laminated steel bar with groove and oil holes.
2. Saw Chain: 0.325" pitch, low-kickback safety chain.
3. Drive Sprocket: Spur or rim-type sprocket (model specific).
4. Clutch Assembly: Centrifugal clutch with drum and springs.
5. Chain Tensioner: Screw adjustment mechanism.
6. Bar Nuts & Washers: For securing the guide bar.
7. Chain Catcher: Safety device to prevent broken chain from striking operator.

Tip: Regularly inspect the chain for sharpness, damage, and proper tension.

Fuel System Parts

Fuel tank, cap, filter, lines, carburetor, and air filter.

1. Fuel Tank: Polyethylene tank with integrated mounting points.
2. Fuel Cap: Ventilated cap with gasket.
3. Fuel Filter: In-tank sintered bronze or felt filter.
4. Fuel Lines: Supply and return lines (if applicable).
5. Carburetor: Diaphragm-type carburetor with adjustment screws.
6. Air Filter: Foam or felt element with cover.
7. Primer Bulb: For fuel system priming (if equipped).

CAUTION! Use only clean, fresh fuel mixture. Stale fuel can cause starting and performance issues.

Ignition System Parts

Spark plug, ignition coil (magneto), flywheel, stop switch, and wiring.

1. Spark Plug: Champion RCJ-6Y, gap 0.025 inch.
2. Ignition Coil: Solid-state electronic module with mounting bracket.
3. Flywheel: Magnets for ignition and cooling fins.
4. Stop Switch: On/Off switch with wiring harness.
5. Wiring Harness: Connects switch to coil.
6. Flywheel Key: Woodruff key for timing alignment.

WARNING! Disconnect the spark plug wire before performing any maintenance to prevent accidental starting.

Controls & Handle Parts

Front handle, rear handle, throttle trigger, throttle lockout, chain brake, and anti-vibration mounts.

1. Front Handle: D-shaped handle with mounting brackets.
2. Rear Handle: Main handle containing throttle trigger.
3. Throttle Trigger: Lever connected to carburetor via cable.
4. Throttle Lockout: Safety lever that must be depressed to engage throttle.
5. Chain Brake Lever/Handle: Front hand guard that activates the chain brake when pushed forward.
6. Anti-Vibration Mounts: Rubber bushings isolating handles from engine.
7. Control Linkage: Throttle cable and carburetor linkage.

Assembly Diagrams

Exploded view diagrams showing the relationship and order of assembly for major components.

• Diagram 1: Engine Crankcase Assembly
• Diagram 2: Cylinder & Piston Assembly
• Diagram 3: Recoil Starter Assembly
• Diagram 4: Clutch & Drive Sprocket Assembly
• Diagram 5: Guide Bar & Chain Assembly
• Diagram 6: Carburetor & Fuel System
• Diagram 7: Handle & Control Assembly
• Diagram 8: Chain Brake Mechanism

Note: Refer to the part numbers listed in each diagram when ordering replacements.

Parts Ordering Guide

Contact an authorized Homelite service dealer or use online parts lookup with the model number (XL 12) and serial number.

1. Identify the part name and number from the relevant diagram in this manual.
2. Provide the full model name "Homelite XL 12" and the serial number (located on the crankcase).
3. For online orders, visit the official parts distributor website.
4. Some common wear parts (spark plugs, air filters, chains) may be available at hardware stores.

Support: For technical assistance or to locate a dealer, visit the manufacturer's website or contact customer service.

Troubleshooting

Disclaimer: Complex repairs should be performed by a qualified technician.

Service: For genuine Homelite parts and service, consult the dealer locator on the manufacturer's website.