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I have a 2002 Johnson 9.9 - 4 stroke that won’t stay running. This scenario has happened to me exactly the same the last two times I took the boat out.
I start the motor using the push in key choke and also with the fast idle lever full up until it starts and then let it warm up for a few minutes at the dock. It is now running fine and I back it out of the slip and start heading across the lake. Within about 5 minutes at the same spot on the lake the motor just shuts down like it completely loses gas. I try to restart the motor with no success. I move the fast idle lever to high and low a couple times and it fires briefly but doesn’t start. I try the idle lever a few more times without luck. I go back to the motor and take off the hood to see if anything obvious is staring at me and nothing but I have the wife turn the key and it starts. I put the hood back on and it runs but when I start to take off the motor wants to die unless I pull the manual choke knob about half way out. If I keep the choke about half it seems to run fine but if I pull the chock all the way out it dogs it down and if I push the choke all the way in it kills it. In between these two runs I have changed the plugs and added Seafoam to the tank.
Does anyone know what this could be? I just bought the motor at the beginning of summer and haven’t really had any problems up until the last 2 times I have ran it. Is it possible that water in the fuel would cause this problem?
Also when I bought this I never got a emergency stop safety lanyard with it and haven’t seemed to have needed it. Does this sound normal?
One other thing, how can I run this in the driveway? It seems that there is no place for muffs. The manual says to tape the water inlet and put a flushing device on with a hose before starting.
Thanks.
problem solved. it was water in the tank. cleaned the carb and drained the tank and now runs fine. Apparently not too many people monitoring this forum.
I start the motor using the push in key choke and also with the fast idle lever full up until it starts and then let it warm up for a few minutes at the dock. It is now running fine and I back it out of the slip and start heading across the lake. Within about 5 minutes at the same spot on the lake the motor just shuts down like it completely loses gas. I try to restart the motor with no success. I move the fast idle lever to high and low a couple times and it fires briefly but doesn’t start. I try the idle lever a few more times without luck. I go back to the motor and take off the hood to see if anything obvious is staring at me and nothing but I have the wife turn the key and it starts. I put the hood back on and it runs but when I start to take off the motor wants to die unless I pull the manual choke knob about half way out. If I keep the choke about half it seems to run fine but if I pull the chock all the way out it dogs it down and if I push the choke all the way in it kills it. In between these two runs I have changed the plugs and added Seafoam to the tank.
Does anyone know what this could be? I just bought the motor at the beginning of summer and haven’t really had any problems up until the last 2 times I have ran it. Is it possible that water in the fuel would cause this problem?
Also when I bought this I never got a emergency stop safety lanyard with it and haven’t seemed to have needed it. Does this sound normal?
One other thing, how can I run this in the driveway? It seems that there is no place for muffs. The manual says to tape the water inlet and put a flushing device on with a hose before starting.
Thanks.
problem solved. it was water in the tank. cleaned the carb and drained the tank and now runs fine. Apparently not too many people monitoring this forum.