Hi, Bought a 550 that had been sitting around for a few months. I've now got the engine turning over when you keep the start button pressed. Have tested both sparks and they are working fine and cant see any obvious leaks. The problem seems to be no fule getting to sparks to ignite. If I pump the chike, fuel goes in the carb. How much fule should I pump into the carb using the choke (worried about flooding the engine)? I've also heard spraying wd40 down the card helps start and engine, true? If so how much? Also, when pressing the start button, should I keep the accelerator pressed in so as to let more air into the engine through the carb? Any other suggestions welcome. Thanks in advance.