1) DOWNLOAD THE MANUAL
2) Learn how to check the oil -- it has to be vertical, not on the side stand. If you added 4 additional quarts of oil (thereby having 7 and change in the cases) you are in serious danger of damaging the motor if you do manage to get it to start. Drain the oil and re-set it to the correct level. Immediately.
3) Whoever the 'we' is that was helping you with this.... don't consider them a good source of mechanical advice.