Briggs & Stratton Spark Plug (RJ19LM). If the engine does not start or runs poorly then the spark plug may be defective and will need replacement.
Briggs & Stratton pre-filter. If this filter is dirty or clogged, the engine will run rough. This filter should be replaced if clogged or when replacing the air filter.
Briggs ignition coil kit to replace points & condenser. 5 HP Horizontal & Vertical Series 550
Lo-Tone, 5 HP Horizontal & Vertical