[Snakehunter724]

Looking for some help. I have a 88 Mercury 35hp that will not stay running. It starts and runs for a about 20 seconds and shutsoff. It seem to lose its prime. I have already replaced the primer bulb from the tank, rebuilt the fuel pump, replaced the fuel filter and fuel lines. I had a fried help me and we checked for fuel flow. We had good fuel through the fuel pump and up to the carberator inlet. I ordered a rebuild kit for the Carberator and hope this fixes the problem. But in case it doesn't I wanted to get some ideas in advanc. If anybody has any ideas, I would appreciate them. It getting late in the year and it driving me crazy that we can't get my pontoon on the water.

Thanks

[Yepblaze]

It still sounds like it's either starving for fuel or sucking air up from the tank instead of gas.

Check all lines, and connections before fuel pump for a kink, wet spot, or some area of leakage where air can get into the fuel line.

You might want to go back over your fuel pump service and look for a reason.

If it stays running ok with a pump of the bulb it's probably not the carb.