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Hi I have a small problem when running the motor around 2000-2500 rpm while trolling as it runs fine for a while then the rpm's drop down 3-400 rpm still running smooth and I can pump up the primer bulb a bit and the rpm's come back up and then it's fine for about 5 mins later the same thing but...
Hi I am just about there but still have no fuel delivery to the plugs?
2007 90 4 strk
I tested the high pressure pump out of the VST and reinstalled it and took off the output line to the fuel rail and it was a very strong fast flow, I also unbolted the fuel rail and turned on the key it blew...
Re: 2006 F90 High Pressure Fuel Pump Testing
Hi thanks for the comments strangely the inside of the VST looks very good with no issues.
I jerry rigged up a test setup as in the West Coast of Canada here on Vancouver Island they want over $500 for the pump alone so I set up the test and it ran...
Hello I have a new boat to me and the motor is not getting fuel, healthy spark and great compression.
The manual pump is pushing gas out throught the filter to the VST and I could hear the HP pump running.
I checked and there was no pressure on the fuel rail to feed the injectors so somewhere...
