Two of you should be able to get the front wheel off the deck just with the side-stand.
Get the back in the air first by pulling on the bars to you and getting the weight onto the sidestand, get it right over, then get your bud to push the back down while you are still holding the bars and bring the front up. You then will be able to check for a obvious notch in your head bearings.
Got shown this on my previous Firestorm which after a bout of wheelie-itice was found to have not so much a notch, but a divvit!
