STANLEY is a registered trademark of The Stanley Works or its affiliates and are used under license by GXi Outdoor Power LLC. 
No part of this publication can be printed or copied without written permission. 
10 of 16 Rev. 5/2010 
Models: G5000S & G8000S 
Step 1. 
Ensure all electrical loads are removed from the generator.  Disconnect 
all the extension cords and ensure the main breaker is in the OFF posi-
tion.  Remove all flammable materials and debris from the area.  Make 
sure the generator is level. 
Step 2. 
Check the oil level.   
•  Put the generator on a level surface with the engine stopped.  
•  Remove the oil filler cap. 
•  Check the oil level.  If the oil level is low, fill it until the oil is over-
flowing.   It will take approximately 0.9 - 1.5 quarts of oil depending 
on the model of generator. 
 
If additional oil is need, SAE 10W-30 engine oil is recommended for 
most general purpose applications.  In cold weather climate, use SAE 
5W-30. 
 
 
 
 
 
 
 
 
 
Step 3. 
Make sure there is fuel in the gasoline tank.  Look at the fuel level indi-
cated by removing the fuel cap to inspect the contents of the fuel tank.  
The fuel filter can also be inspected once the fuel cap is removed.  
Ensure the fuel filter is clean of dirt and debris.  Tightly secure the fuel 
cap after your inspection is complete. 
 
Fuel can damage paint and plastic. Be careful not to spill fuel when 
filling your fuel tank. Damage caused by spilling fuel is not covered 
under warranty.  Use unleaded gasoline with a pump octane rating of 
86 or higher.  This engine is certified to operate on unleaded gasoline.  
Unleaded gasoline produces fewer engine and spark plug deposits and 
extends exhaust system life.  Never use stale or contaminated gasoline 
or an oil/gasoline mixture. Avoid getting dirt or water in the fuel tank.   
CARBON MONOXIDE GAS 
 
Using a generator indoors CAN KILL YOU IN MINUTES. 
 
Generator exhaust contains carbon monoxide (CO). This is a 
poison you cannot see or smell. If you can smell the genera-
tor exhaust, you are breathing CO. But even if you cannot 
smell the exhaust, you could be breathing CO. 
 
NEVER use a generator inside homes, garages, crawl-
spaces, or other partly enclosed areas. Deadly levels of 
carbon monoxide can build up in these areas. Using a fan or 
opening windows and doors does NOT supply enough fresh 
air. 
 
ONLY use a generator outside and far away from windows, 
doors, and vents. These openings can pull in generator ex-
haust. 
 
Even when you use a generator correctly, CO may leak into 
the home. ALWAYS use a battery-powered or battery-
backup CO alarm in the home. 
 
If you start to feel sick, dizzy, or weak after the generator 
has been running, move to fresh air RIGHT AWAY. See a 
doctor. You could have carbon monoxide poison. 
DANGER 
Operating the Generator 
DO NOT overfill the tank.  Leave a 1 inch air gap in the tank. Gaso-
line is highly flammable and explosive. You can be burned or seri-
ously injured when refueling. 
•  Stop engine and keep heat, sparks, and flame away. 
•  Refuel only outdoors. 
•  Wipe up spills immediately. 
This portable generator is not for use with gasoline/ethanol blends 
with over 15% ethanol. 
 
WARNING 
WARNING 
Electocution hazard - Electricity can cause DEATH or SERIOUS IN-
JURY. 
•  Do not operate the generator in standing water. 
•  This product is not safe to operate when partially or totally submerged 
in water. 
•  Ensure proper drainage in the region surrounding this generator. 
•  Properly ground the generator and verify ground is in place before 
each use. Grounding regulations vary by location, consult a qualified 
local electrician for proper grounding instructions. 
•  Power cords and electrical equipment pose a risk of shock and elec-
trocution, especially if they are operated in wet conditions. Inspect all 
equipment prior to every use and use only as directed by the manu-
facturer.  
•  Use a cord with GFCI protection when using the power outdoors or 
when moisture is present.  
•  Generators vibrate in normal use. During and after the use of the gen-
erator, inspect the generator as well as extension cords and power 
supply cords connected to it for damage resulting from vibration. Have 
damaged items repaired or replaced as necessary. Do not use plugs 
or cords that show signs of damage such as broken or cracked insula-
tion or damaged blades. 
 
 
 
NEVER START OR STOP THE ENGINE WITH DEVICES CONNECTED TO 
THE GENERATOR. 
DANGER