Pulling fuel tank 763

[Jeeper78]

Wanna pull my tank while I have my motor out The tank seems to be stuck lots of rocks and sludge there's a hole in the middle of the tank is that where you pull it from? It's amazing how much stuff accumulates under there

 

[Tazza]

It should lift up and out, the main places it gets hung up on are the bolts that hold the chassis on, there are steel blocks welded to the chain case area that can make it hard to pull the tank out, back sides near the wheels.
Keep prying at it, there are no bolts holding it down as such, it just gets wedged in with goo, as you have noticed.