Honda EW170 Owner's Manual page 26

Tool kit
The tools supplied are necessary for performing some periodic maintenance,
simple adjustments and repairs.
Always keep the tool kit with the generator/welder.
Changing oil
Drain the oil while the engine is still warm to assure rapid and complete drain-
ing.
1. Remove the drain plug and filler cap, and drain the oil. Retighten the drain
plug securely.
2. Refill with the recommended oil (see page 7) and check the level.
DRAIN
I L FILLER CAP
24