1 Pressure regulator Thu Aug 30, 2012 3:27 pm
nutheastah
New member
What is the purpose of the vaccume on the fuel pressure regulator? does it drop or raise fuel pressure? Let see we have an electric pump which should keep pressure constant and the change should be fuel used in the rail by the injectors might cause a slight pressure drop. in the picture of the cutaway of the regulator it appears that as the vaccume increases it would pull in the needle valve anddrop fuel pressure. any one out there run their scooter without this vaccume line?
"entities should not be multiplied greater than necessary" William of Occam
"entities should not be multiplied greater than necessary" William of Occam