Recently my motor started giving me trouble. I would be cruising at 35 and all of a sudden it would drop speed to about 25. Kept doing funny stuff like that until one day it jus would sputter in gear and kill. Sometimes it would run but no power, wouldnt get on a plane. But it started fine and idoled fine. So I reluctantly took it to a mechanic and he calls me today and says the reed valve is bad and needed replacing and it was goin to be 440 plus tax and he had to fix that before he could further diagnose it. Ive never heard of a reed valve until today. I was wondering what caused this and also if this is a fair price. And also is this REALLY the problem?? I did notice the top carb coughing and spitin out alot. Also had like a creamy foam whitish color and thought it could be water in the gas tank. But we'll see what the greedy mechanic has to say about it. Jus not sure if its worth it to pay all this money to get an old motor running.