Gas Walk Behind Mower — service parts and specifications. Also written 917389380.
Read this before you order anything. These figures are transcribed automatically from manufacturer manuals and can be wrong. Nothing here is a fitment guarantee or professional advice.
Provided free, as is, with no warranty and no liability accepted — you use it at your own risk and on your own responsibility. Check every number against the plate on your own machine before you buy or fit a part.
Reference data — no warranty, no fitment guarantee, used at your own risk. Disclaimer
Transcribed from the manufacturer manual — not a fitment guarantee. Manufacturers supersede part numbers during a production run: check these against the plate on your own machine before ordering.
Note: some values below appear more than once in the manual without a clear label. This usually means the model changed across production years. Check your serial number plate before ordering.
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.
Air filter — Check every 25 hours, more often in dusty conditions. A clogged filter shows up as black smoke and power loss.
| Item | Value | Context | Page |
|---|---|---|---|
| Spark plug | RJ19LM | … 1.6 QUARTS UNLEADED REGULAR SAE 30 (ABOVE 32°F) SAE 5W-30 (BELOW 32°F) 20 OZS. CHAMPION RJ19LM OR J19LM INTAKE: .004 - .008 EXHAUST: .004 - .008 … | 11 |
| Spark plug | J19LM | TS UNLEADED REGULAR SAE 30 (ABOVE 32°F) SAE 5W-30 (BELOW 32°F) 20 OZS. CHAMPION RJ19LM OR J19LM INTAKE: .004 - .008 EXHAUST: .004 - .008 .0125 IN … | 11 |
| Spark plug gap | .030 | ATE OF PURCHASE HORSEPOWER: GASOLINE CAPACITY/TYPE: OILTYPE (API-SF/SG/SH): OIL CAPACITY: SPARK PLUG (GAP: .030") VALVE CLEARANCE: SOLID STATE … | 11 |
| Engine oil | SAE 30 | LID STATE IGNITION AIR GAP: BLADE BOLT TORQUE: 917.389380 6.0 1.6 QUARTS UNLEADED REGULAR SAE 30 (ABOVE 32°F) SAE 5W-30 (BELOW 32°F) 20 OZS. CHAMPION … | 11 |
| Engine oil | SAE 5W-30 | IR GAP: BLADE BOLT TORQUE: 917.389380 6.0 1.6 QUARTS UNLEADED REGULAR SAE 30 (ABOVE 32°F) SAE 5W-30 (BELOW 32°F) 20 OZS. CHAMPION RJ19LM OR J19LM … | 11 |
| Engine oil | 5W-30 | AP: BLADE BOLT TORQUE: 917.389380 6.0 1.6 QUARTS UNLEADED REGULAR SAE 30 (ABOVE 32°F) SAE 5W-30 (BELOW 32°F) 20 OZS. CHAMPION RJ19LM OR J19LM INTAKE … | 11 |
| Air filter | 491588 | … 930 497233 Guard, Finger 957 397974 Cap, Fuel Tank 966 496116 Base, Air Cleaner 967 491588 Filter, Air _o8 281340 Cover, Air Cleaner 969 94872 … | 24 |