OntarioKyle
New member
Hello all. Frequent visitor but first time poster on this forum. I cant find any other issues that match my exact issue, so I will outline it below.
after winter storage, my 9.9 2 stroke fired right up after one pull. after a warm up idle, i took off and for about 2 seconds, the motor made power fine. then it died down as if starving for fuel. for the remainder of the day, the only way I could get around was 1/4 throttle and a bit of choke. without choke, it idle fine but dies as soon as I try to put power down. after it quits. It always fires right back up easily.
I would like to add: priming the fuel line (pumping the ball) does not help, and the fuel pump diaphragm is in good shape. I have inspected the lines and tank for air leaks but haven't found any yet. Main jet and pilot jet were cleaned thoroughly. Carb was drained and motor fogged before storage. fresh fuel at the beginning of the outing. I believe it is a carb issue because it will not die or sputter when being choked, only without choke.
problem is intermittent. Every now and then I can get 30 seconds of good performance before it starts to die again.
I would like to add that the cooling system is working well, and hot water fires out the back of the motor while running. Would also like to add that the bottom end oil is also brand new and was put in 25 min before launching the boat, so its not the bottom end seizing up.
I looked at the float and when the carb is held upside down, there is about a 1/4'' gap between the bowl mount flange on the carb and the top of the float. i have looked and looked, but can not find factory spec for float height setting, so I'm not sure whether float height is to blame,
I have yet to try sea foam and am going to clean the carburetor again. other than than, I am at a loss on what to try, the motor ran awesome last time it was used (last November) .If anyone has any clue what to try/check, please let me know. It theres any more information I can add, or anything you need clarified, let me know.
Thanks in advance.
after winter storage, my 9.9 2 stroke fired right up after one pull. after a warm up idle, i took off and for about 2 seconds, the motor made power fine. then it died down as if starving for fuel. for the remainder of the day, the only way I could get around was 1/4 throttle and a bit of choke. without choke, it idle fine but dies as soon as I try to put power down. after it quits. It always fires right back up easily.
I would like to add: priming the fuel line (pumping the ball) does not help, and the fuel pump diaphragm is in good shape. I have inspected the lines and tank for air leaks but haven't found any yet. Main jet and pilot jet were cleaned thoroughly. Carb was drained and motor fogged before storage. fresh fuel at the beginning of the outing. I believe it is a carb issue because it will not die or sputter when being choked, only without choke.
problem is intermittent. Every now and then I can get 30 seconds of good performance before it starts to die again.
I would like to add that the cooling system is working well, and hot water fires out the back of the motor while running. Would also like to add that the bottom end oil is also brand new and was put in 25 min before launching the boat, so its not the bottom end seizing up.
I looked at the float and when the carb is held upside down, there is about a 1/4'' gap between the bowl mount flange on the carb and the top of the float. i have looked and looked, but can not find factory spec for float height setting, so I'm not sure whether float height is to blame,
I have yet to try sea foam and am going to clean the carburetor again. other than than, I am at a loss on what to try, the motor ran awesome last time it was used (last November) .If anyone has any clue what to try/check, please let me know. It theres any more information I can add, or anything you need clarified, let me know.
Thanks in advance.