vineyard39
New member
"Trying to break in my new 15h
"Trying to break in my new 15hp 2 stroke Yamaha but it seems to be running too rich at idle and stalls after a few minutes of running, no problem at high speeds. After it stalls I have to disconnect gas line, cover air intake and keep pulling until excess gas is sucked out and then it cranks again but at slow idle speeds it smokes a lot and will not idle with out stalling as if it is flooding. Is there a low seed air/fuel mixture adjustment screw?? Seems the mixture may be too rich with fuel at idle."
"Trying to break in my new 15hp 2 stroke Yamaha but it seems to be running too rich at idle and stalls after a few minutes of running, no problem at high speeds. After it stalls I have to disconnect gas line, cover air intake and keep pulling until excess gas is sucked out and then it cranks again but at slow idle speeds it smokes a lot and will not idle with out stalling as if it is flooding. Is there a low seed air/fuel mixture adjustment screw?? Seems the mixture may be too rich with fuel at idle."
