I am stumped.
This is a new boat to me, and so I don't have history to compare her to.
The A4 starts on first or second revolution, and seems to run smoothly in idle. She will handle throttle well in neutral and seems to go up in the 2500-3000 rpm range though I do not have a tach.
In forward full throttle i can make about 3 to 3-1/2kts over water. However, after a bit she will suddenly drop in rpms and then I can only make 2 to 2-1/2 kts.
The carb has been cleaned and the floats adjusted. Opening the choke causes th ngine to stutter.
I thought it might be fuel, so tOday
I recleaned the carb and ran fresh fuel from an auxilary tank. I could only make 3kts again.
The water temp stays about 160-170 and the oil pressure stays at about 35. I don't feel any excessive vibrations, and am not blowing an Noticeable smoke. Water is coming out of the exhaust as it should be.
My next move was to change plugs, but I need to make tjis work soon as I have to get this boat up the river tomorrow against a 3-4 kt tide for haulout.
Is there anything more I should be looking at?
Thanks Jim
This is a new boat to me, and so I don't have history to compare her to.
The A4 starts on first or second revolution, and seems to run smoothly in idle. She will handle throttle well in neutral and seems to go up in the 2500-3000 rpm range though I do not have a tach.
In forward full throttle i can make about 3 to 3-1/2kts over water. However, after a bit she will suddenly drop in rpms and then I can only make 2 to 2-1/2 kts.
The carb has been cleaned and the floats adjusted. Opening the choke causes th ngine to stutter.
I thought it might be fuel, so tOday
I recleaned the carb and ran fresh fuel from an auxilary tank. I could only make 3kts again.
The water temp stays about 160-170 and the oil pressure stays at about 35. I don't feel any excessive vibrations, and am not blowing an Noticeable smoke. Water is coming out of the exhaust as it should be.
My next move was to change plugs, but I need to make tjis work soon as I have to get this boat up the river tomorrow against a 3-4 kt tide for haulout.
Is there anything more I should be looking at?
Thanks Jim
Comment