Tweet
I have twin 2000 150 outboards two strokes and on my last trip out we *****ed for about two hours at 5MPH. When I powred up to about 20MPH one of the motors statred changing RPM's from 2200 down to 1100 and up and down that way until I decided to go back to port. I have a fairly new Fuel Water seperator on it. What could be causing this?
-
-
what model ## -
RPM'S up and down
it is a sx150txryComment
-
your describing a classic loss of fuel rail pressure.
either the VST cant get fuel or the VST filter is clogged with debris.Comment
-
RPM's up and down
I had what i think is the VST cleaned in May. Does the VST look like the shape of a fuse with brass ends. My boat is in Mexico and I had someone interpert to the mecannic that i wanted the VST filters cleaned. I watched him take out them and scrape off what appeared to be carbon build up. is that what you are talking about?Comment
-
no, your describing the o2 sensor draw tube now.
the vst is the AL tank on the fwd port side of the motor.Comment
-
RPM"S up and down
That makes since it did not look like a filter at all. I have been doing reserch on the VST and just ordered a new one and o ring for that motor. Seems to be a lot of work to get to it. I was wondering what the average time is start to finish. And do you think i should replace the pump or anything else while it is opened up? My port motor is working fine but I know now that the VST filter has never been cleaned or replaced. So do you think I can get by on just cleaning that one and replacing the o ring?
Thanks for your help.Comment
-
45 minutes per engine.Comment
-
Hi i just wanted to say thanks for your suggestion. The VST filter was the problem.Comment
Comment