I have a G955 sit for about 2 years in Barn. Had quarter tank old fuel in it Started right up. Filled rest of way with fresh fuel went to sub soil. Made couple rounds smothered out. Put on new fuel filter same thing. Drained tank some trash in tank, Cleaned out tank best I could strained fuel put about 8 gal back in, bleed injectors starts the best runs good up to half throttle but start going above that it run a little rough, go to full throttle about 1 minute falls on face and dies. It will start back up right away and do the same thing again. Had injector pump rebuilt several years ago but has had very few hours put on since then and it had run the best.