Generac — Storage Instructions
Maintenance · Engine
From a Generac owner's manual covering: GT-760, GT-990, GTH-760, GTH-990, GTV-760, GTV-990. Check it applies to your exact model before use.
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Before you start
- Never store the engine with fuel in the tank indoors or in an enclosed or poorly ventilated area.
- Drain the fuel into an approved container, outdoors, away from open flame. Be sure the engine is cool.
Procedure
- Run the engine for about five (5) minutes to warm it.
- While the engine is still warm, drain the oil from the crankcase. Refill it with fresh oil.
- Remove spark plug and pour about 1/2 ounce (15ml) of engine oil into the cylinder. Crank slowly to distribute oil.
- Install the spark plug. Do not connect the spark plug wire.
- Clean dirt, oil and grease from cylinder, cylinder head, fins, blower housing, rotating screen and muffler area.
- Close the fuel shut-off valve.
Source: Generac owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.