Hope you are having a great New Years. Have talked to you about 96 polaris magnum 425, Fuel flow from fuel pump was weak, replaced fuel pump, and has no flow after rplacement, flow from tank is ok, lines are correct, but it acts like it has a weak vacum from carb., what could cause this and what do I need to check for. Thank you

 

If you have a new fuel pump, gas flow from tank is good and all lines are clean and correct,have you put your hand at the back of the carb and checked if it has good suction? Plus did you ever check the cam and valves out? This could one reason for low vacuum pull to carb? Just fishin OPT