I have a 1986 90Hp, 6 cyl. 3 carb mariner outboard<br />Has ran great last ten years I have owned it<br />Yesterday was first I launced the boat this year.<br />Starts and idles Great, But when underway about 1/8 throttle starts chocking but never stalls<br />Full throttle runs maybe 10 maybe 11 MPH chocking all the time. When I give it throttle with out gears engaged it roars (never misses).<br />Changed filter, plugs, fresher gas, same problem<br />almost like water in carbs.<br />Winterized the same way last year as I aways do<br />Ran out of gas, fogged, covered and put away covered<br /><br />Any ideas