i had a hell of a time today starting my plane cuz i was dumb adn set in on a hill facing down whoops anyway i must have filled the entire thing with fuel, so i dumped it all out and she started up in about 5 seconds. flew great all day that i flew too.

maybe you have your tank a little to high up in your fuselage. i had that problem with my other plane, i dropped it down to where it should have been(i followd instructions to the T for where to place it) and it starts much better now