How to Oil a Troy-Bilt String Weed Eater
- 1). Unplug the spark plug wire from the spark plug and locate the oil fill cap near the rear of the engine.
- 2). Twist the oil cap counterclockwise to remove it from the engine. The oil dipstick will be attached to the bottom of the cap. Wipe the dipstick clean with a rag and set the oil cap aside.
- 3). Drain the oil out of the weed eater and into a container. Hold the trimmer upside down over the container until all the oil drains from the engine. Place the weed eater on a flat, level surface to refill with oil.
- 4). Pour 3.4 fluid ounces of SAE 30 SF motor oil into the oil fill hole. Place the oil cap with dipstick into the cranckcase and pull it out again. Check the oil level on the dipstick. Add oil until the dipsticks reads "Full."
- 5). Place the oil cap back onto the oil fill hole and twist clockwise to secure it.
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