A Briggs & Stratton 8000W/10000W gas-powered portable generator typically features 8,000 running watts and 10,000 starting watts, with a 420cc OHV engine. It includes a 7.5-gallon fuel tank, offering around 9 hours of run time at 50% load. The generator also features electric start, a remote choke, and multiple outlets for powering various devices. 
Key Features and Specifications:
Power Output: 8,000 running watts, 10,000 starting watts. 
Engine: Briggs & Stratton 420cc OHV engine. 
Fuel Tank: 7.5-gallon metal fuel tank. 
Run Time: Approximately 9 hours at 50% load. 
Starting: Electric start with remote choke. 
Outlets: (4) 120V household outlets, (1) 120/240V 30A locking outlet. 
Other Features: Power Surge™ alternator, Super Lo-Tone muffler, Never Go Flat wheels, fuel gauge, and CO Guard carbon monoxide shutdown technology (in some models). 
Additional Details:
Alternator:
The Power Surge alternator provides a surge of power to start motor-driven appliances and tools simultaneously. 
Starting:
The electric start and remote choke allow for effortless starting from a single location. 
Portability:
The "Never Go Flat" wheels and grab handle make it easy to move the generator around. 
CO Guard:
Some models include CO Guard technology, which automatically shuts down the generator when harmful levels of carbon monoxide are detected.