I just pulled a GXV160 electric start motor out from my pile that has been sitting there for probably 5/6 years never drained the carby just put it in the pile . I paid $50 for it and the bloke told me there was something wrong with the valves, he had adjusted them several times and it would just not run right. I pulled it out today and set it up on the bench, put fuel in it and it fired straight up, but as soon as the choke was eased it revved straight up. Adjusted the governor and it purs like a kitten. They are an amazing motor, best mower motors ever made