Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | air cleaner oil cups | — | 1000 hr | ||
| Fuel filter | — | ||||
| Oil filter | oil filter | — | 1000 hr | ||
| Battery | 12 volt (or two 6 volt batteries in series) | — | |||
| Belt | — | ||||
| Coolant | radiator coolant | — | |||
| Coolant filter | — | ||||
| Oil | 18.0 quarts | — | |||
| Spark plug | not specified | — | 1000 hr |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.