Any help I can get would be appreciated. <br /><br />Long story short - bought boat, old owner had new carbs installed last year. I purchased the boat, which would idle fine, but die when placed in gear. Messed with it, couldn't get it right, didn't have time, so it went to the shop.<br /><br />Shop said there was water in the tank. The shop removed carbs, did a complete carb tear down and cleaning, and removed tank from boat to clean it. Charged me one arm and one leg, and sent me on my way.<br /><br />Took the boat to the lake this morning. Didn't start right up. After about 10 tries, got it going. Idle was really rough. Got the boat moving. Once it got moving (1/2 power or more), ran real smooth with no problems. Runs great at WOT. Back near idle, runs bad and motor on back of boat jerks from side to side. Didn't die, which was good, but the boat did idle better before they cleaned the carbs. <br /><br />Any idea of how I can improve the idle on the boat? <br /><br />Running 50-1 mix (might be a little heavy, more like 45 - 1 mix) with 93 octane gas from a well-used gas station. <br /><br />Would running a little heavier oil to gas mix mess with the idle? If yes, then why does it run so well at WOT?<br /><br />Any and all help is welcome.
