The Craftsman M220 is a versatile lawn mower engine designed for reliability and performance. This manual provides detailed parts identification, ordering information, maintenance procedures, and safety guidelines for the M220 engine used in various Craftsman lawn mowers. Below are key sections covering engine specifications, parts diagrams, replacement procedures, maintenance schedules, and troubleshooting.
The Craftsman M220 is a 4-cycle, single-cylinder, air-cooled gasoline engine commonly used in walk-behind and riding lawn mowers.
| Specification | Description |
|---|---|
| Engine Model | Craftsman M220 |
| Engine Type | 4-Cycle, OHV (Overhead Valve) |
| Displacement | 190cc (11.6 cu. in.) |
| Bore x Stroke | 62mm x 48mm |
| Power Output | 6.75 HP @ 3600 RPM |
| Fuel Type | Unleaded Gasoline (87 Octane minimum) |
| Oil Capacity | 20 oz. (0.6L) |
| Oil Type | SAE 30 (above 40°F) / 10W-30 (multi-viscosity) |
| Ignition System | Solid State with Electronic Spark Advance |
| Starting System | Recoil Starter (standard) |
Refer to the following diagrams for component identification and assembly relationships.
NOTE: Diagrams are numbered for cross-reference with the Parts List.
Use the part numbers below when ordering replacements. Always verify the model number (M220) and serial number.
Ordering: Contact Craftsman Parts at 1-888-331-4569 or visit www.craftsman.com/parts.
Regular maintenance ensures optimal performance and longevity.
WARNING! Disconnect spark plug wire before performing any maintenance.
Always follow safety precautions to prevent injury or damage.
| Hazard | Precaution |
|---|---|
| Rotating Blade | Disconnect spark plug before inspecting or replacing blade. |
| Hot Surfaces | Allow engine to cool before touching muffler, cylinder head, or crankcase. |
| Fuel Fires | Refuel outdoors, away from ignition sources. Wipe spills immediately. |
| Carbon Monoxide | Operate engine outdoors only; never in enclosed spaces. |
| Electrical Shock | Do not modify ignition system; keep wiring dry and intact. |
CAUTION! Wear safety glasses and gloves when handling parts or performing maintenance.
Key procedures for common repairs. Refer to diagrams for torque values and sequences.
Tip: Use a torque wrench for critical fasteners; label parts during disassembly.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Engine won't start | No spark, old fuel, clogged carburetor | Check spark plug, ignition coil; use fresh fuel; clean carburetor. |
| Engine runs rough or stalls | Dirty air filter, incorrect valve clearance | Clean/replace air filter; adjust valve clearance. |
| Excessive vibration | Unbalanced blade, loose mounting bolts | Balance or replace blade; tighten engine mounting bolts. |
| Oil leakage | Worn gaskets/seals, overfilled oil | Replace crankcase or head gasket; drain to correct level. |
| Loss of power | Clogged fuel line, carbon buildup | Clean fuel line and filter; decarbonize cylinder head. |
Reset: For electronic ignition issues, disconnect battery (if equipped) for 30 seconds.
Craftsman M220 engines are covered by a limited warranty. Refer to your original purchase documentation for terms.
For warranty service, call 1-888-331-4569.
For additional assistance with parts identification, maintenance, or troubleshooting:
Craftsman Customer Support: 1-888-331-4569 (Monday-Friday, 8am-8pm EST)
Online Resources: www.craftsman.com/service-support
Email Support: [email protected]
Service Centers: Locate authorized service centers via the website.
Safety & Manual Updates: Always check website for latest manual revisions.