Originally Posted by
Cougar429
The exhaust valve sticking open could account for what you describe AND a no start condition. You will feel a draw during the power stroke as this is the only downward part of the cycle where the intake valve is closed.
If any valve will stick, it's usually that one. Carbon/fried lube buildup on the stem can make it bind up, usually when it sits with the valve held open. The same buildup between the valve and seat can prevent a good seal.
Learning is good. Even better when it's free.
Cougar429, if it is just a sticking valve, could Bill just soak the engine in penetrating oil and manually push the valve stem up/down until it frees up? Might work.