I have a grizzly 300 2012, recently I flipped it and just got done fixing everything. But just found a new problem. If I run it for long enough the grizzly will start to die down as if it ran out of gas mid ride. And gas is completely full. This only happenes after around 5 minutes of riding. Right now I don’t have any coolent in the quad so I don’t know if that’s the problem because it can’t use it to cool the engine or if it’s a gear or engine problem. Does anyone have suggestions?