My yamaha 50 still boggs down when I gun it from a stand still. I'm gonna tear the carbs apart tomorrow, but wanted to know if this is the place to start. I can usually rescue it with the choke, and it doesn't do it all the time (though it does most of the time). <br /><br />Could this be a timing problem? I'll squeez the primer ball when it's happening, and this has no effect, so I'm assuming it's not a fuel pump issue.<br /><br />Any last thoughts before I tear the carbs apart would be great.