Start with your anti- siphon valve coming out of your fuel tank then check all of the fuel lines all the way to the carbs. The ethonal gas rots your fuel lines from the inside and sometimes a piece will act like a valve or if a line is making a bend when your asking for more fuel the suction will collapse the line.I was out in your area in a friends boat a few weeks ago and he started having the same issue, changed out his fuel lines and the problem went away.
I am with stguy.I had a very similar issue and come to find out my fuel line rotted and it was clogging my fuel from getting to my engine. They were tiny little clear plastic particles.
If you get as far as the sea foam and it works maybe replacing the spark plugs and wires on all cylinders.. this the cause of carbon fouling usally.. incomplete combustion not stoich as in stokyo metric efficiency like a 14:1 ratio of combustion.. even ignition timing being retarded can cause fouling... or over oiling ?? As in to rich of fuel.. that's if the sea foam works?? Always look at the spark plugs and look at charts and compare what's going...if wondering....
Did you own an ST1100Or ST1300Asking because of your name here.Nope...had cb, kz, fj, gl, yz, rm, it, and a few others but never an st, they are cool looking bikes though.Thanks
Nope...had cb, kz, fj, gl, yz, rm, it, and a few others but never an st, they are cool looking bikes though.
Stoichiometry is 10:1 for naturally aspirated combustion.14:1 is excess air and you’ll burn up pistons with the flame temps being too hot.
Compression ratio is 10:1 on gas motor but can be as high as 14:1 for diesel motors