fuel issues

Ronlee

Recruit
Joined
Oct 5, 2011
Messages
4
I have a 74 Stamas with twin 165 engines. both engines are pulling from a single suction line. I have replaced filters, filter housings both pumps, anti siphon valve, and all fuel hoses with clamps. I cannot keep fuel in the engines. If the boat sits for a week the carbs and pumps are dry. It almost acts ;like the 2 pumps are working against each other. Does any one have any ideas. The tank pick up has been pulled and tested for air leaks and nothing found as yet.
Once I get them primed they run great.
 
Top