Is there a larger fuel tank for the portable generators?
No. Our contractor models (GPN and GPNR Series) have a 4 gallon tank (up to 7.5 KW) and 8 gallon tank (from 9 to 15 KW) for extended run times. These fuel tanks are always elevated above engine fuel input, and above generator end, not above the engine. Addition capacity tanks will cause more gravity feed pressure on carburetor components and may cause damage.