Need a little help folks.
What I have is a 1999 GSX limited. Carb’s are BN 46i. When my son first got the ski
it had been in storage for 5 yr. It had been oil down and fuel removed from tank. We looked it over good , put gas in it and fired it up for about 10-15 seconds. I said ok lets go to the lake a see if run’s on the water. It started up and would idle ok but bog and die if you give it gas. After 2-3 try’s I told him to work the choke at the same time. Finally it got up on plane and really took off. That little rascal looked really fast on the straightaway. After 2 laps he came back
in and said it was surging. Also getting hard to restart so I said put on the trailer and go back to the shop. Something’s not right.
Now today. I have replaced the gray hose. Cleaned and put in new carb kits. Everything cleaned up good, all fuel passages clear, new needle and seat, diaphragms and ck valves in fuel pump. Bought tester for pressure test. Pop-out was 22-23 psi on both carb’s. 10 psi leak test on needle and seat ok.
So, here is the problem, almost no fuel pressure at cranking speed. Won’t start.
We can start it with squirt bottle in pto carb and it will run if you keep the rpm up 3-4000. I was very surprised at this problem. Everything went so well going back together.
Side bar: I really don’t understand this fuel pump. It has 1 fuel inlet and a fuel return back to
the tank. Return line is block by diaphragm so it’s not doing anything. There’s no pulse inlet.
So how dose it get it’s pumping action?
Well I have said enough. Sure hope someone can help me out here..
What I have is a 1999 GSX limited. Carb’s are BN 46i. When my son first got the ski
it had been in storage for 5 yr. It had been oil down and fuel removed from tank. We looked it over good , put gas in it and fired it up for about 10-15 seconds. I said ok lets go to the lake a see if run’s on the water. It started up and would idle ok but bog and die if you give it gas. After 2-3 try’s I told him to work the choke at the same time. Finally it got up on plane and really took off. That little rascal looked really fast on the straightaway. After 2 laps he came back
in and said it was surging. Also getting hard to restart so I said put on the trailer and go back to the shop. Something’s not right.
Now today. I have replaced the gray hose. Cleaned and put in new carb kits. Everything cleaned up good, all fuel passages clear, new needle and seat, diaphragms and ck valves in fuel pump. Bought tester for pressure test. Pop-out was 22-23 psi on both carb’s. 10 psi leak test on needle and seat ok.
So, here is the problem, almost no fuel pressure at cranking speed. Won’t start.
We can start it with squirt bottle in pto carb and it will run if you keep the rpm up 3-4000. I was very surprised at this problem. Everything went so well going back together.
Side bar: I really don’t understand this fuel pump. It has 1 fuel inlet and a fuel return back to
the tank. Return line is block by diaphragm so it’s not doing anything. There’s no pulse inlet.
So how dose it get it’s pumping action?
Well I have said enough. Sure hope someone can help me out here..
