I am trying to remove the intake manifold and have followed the instructions in the service manual starting on page 6-30. The back of the manifold is loose but the front is not. It appears to me from looking at photos of the manifold that the ETV has 4 bolts that are attached to the manifold. Am I missing something? If I need to remove the 4 bolts from the ETV in order to get the intake manifold off, why isn't it in the instructions?? Or is it just a snug fit and I need to pull harder? I have confirmed that I have the correct service manual for this motor.