Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Element Wrapper (If Equipped) | 140-2335 | 25 hr | Amazon eBay $21.00 | |
| Fuel filter | Fuel Filter | 149-2206-01 | 25 hr | Amazon eBay $12.86 | |
| Oil filter | Spin off oil filter element and discard it. Thoroughly clean filter mounting surface and make sure new gasket is inserted in the element. Apply a thin film of oil to the gasket. Spin element down by hand until gasket just touches mounting pad and then turn down an additional 1/2-3/4 turn. Do not overtighten. | 122-0737 | 25 hr | Amazon eBay $11.99 KuduParts $11.00 | |
| Battery | Disconnect negative ground strap from the battery before working on any part of the electrical system or engine. Disconnect positive terminals before charging battery to avoid damaging ignition system alternator or regulator. | — | |||
| Oil | Run engine until thoroughly warm before draining oil. Stop the engine, place a pan under the drain outlet and remove the oil drain plug. After the oil is completely drained, replace the drain plug. Refill with oil of the correct API classification and appropriate SAE viscosity grade for the temperature conditions (refer to ENGINE SET-UP). | — | |||
| Spark plug | Replace spark plug if it shows signs of fouling or electrode erosion. | 167-0765 | 4000 hr | Amazon eBay |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.