Gas Walk Behind Mower — service parts and specifications. Also written 944362010.
Spark plug — Replace annually or every 100 operating hours. Cross-reference equivalents from other brands usually fit.
Spark plug gap — Set with a feeler gauge before installing. A wrong gap causes hard starting and rough running.
Engine oil — Grade depends on operating temperature, not on the machine. Several grades listed below are all correct — pick by season.
Oil capacity — Refill amount after draining. Always verify on the dipstick; a slight overfill can foul the plug.
Blade — Sharpen or replace at the start of each season. Always balance a sharpened blade before refitting.
| Item | Value | Context | Page |
|---|---|---|---|
| Spark plug | RJ19LM | … 32°F); SAE 5W-30 (below 32°F) Oil Capacity: 20 Ounces Spark Plug (Gap: .030") Champion RJ19LM Blade Bolt Torque: 35-40 ft. Ibs. • The model and … | 12 |
| Spark plug gap | .030 | Oil Type (API-SF-SJ): SAE 30 (above 32°F); SAE 5W-30 (below 32°F) Oil Capacity: 20 Ounces Spark Plug (Gap: .030") Champion RJ19LM Blade Bolt Torque … | 12 |
| Engine oil | SAE 30 | … Purchase: Gasoline Capacity / Type: 1.0 Quarts (unleaded regular) Oil Type (API-SF-SJ): SAE 30 (above 32°F); SAE 5W-30 (below 32°F) Oil Capacity … | 12 |
| Engine oil | SAE 5W-30 | Capacity / Type: 1.0 Quarts (unleaded regular) Oil Type (API-SF-SJ): SAE 30 (above 32°F); SAE 5W-30 (below 32°F) Oil Capacity: 20 Ounces Spark Plug … | 12 |
| Engine oil | 5W-30 | … / Type: 1.0 Quarts (unleaded regular) Oil Type (API-SF-SJ): SAE 30 (above 32°F); SAE 5W-30 (below 32°F) Oil Capacity: 20 Ounces Spark Plug (Gap … | 12 |
| Oil capacity | 1.0 Quarts | PRODUCT SPECIFICATIONS Serial Number: Date of Purchase: Gasoline Capacity / Type: 1.0 Quarts (unleaded regular) Oil Type (API-SF-SJ): SAE 30 (above … | 12 |
| Blade | 850972 | … Screw 3/8-16 x 1 31 132004 Hex Nut 1/4-20 33 181940 Housing 34 850977 Blade Adapter 35 850972 Blade 20" 36 851074 Washer (Hardened) 37 850263 … | 19 |