40hp Merc 2001 stalls

Robert Gregory

Recruit
Joined
Jul 2, 2006
Messages
5
My motor starts great idles and at about 1000 rpm. Then I put in gear and throttle up and cruise for about ten minutes at about 3500 rpms runs great while cruising at 3500 rpm. then i throttle down to a idle. at this point the idle is at 750 rpm in nuetral . when i put it back in gear the motor stalls. it wont restart unless I Prime it (with electric motor primer not the primer bulb) then the idle is at 750-800 rpm when i put back in gear it stalls again. the timing is 8td at idle
It only does this when the boats in the water. i replaced all the fuel lines, primer bulb, water separator,cleaned the carb, all new carb gaskets, and checked the timing plugs spark plugs are clean. this problem only happens when motor is warmed up and in the water. anybody got any ideals
 
Top