Hello all. I have a 200 merc. that seems to have a surging problem after and while accelerating. From idle it will jump to approx. 3000 rpm and hesitate until eventually reaching 5000-5200. However, when cold it will usually accelerate very smoothly. These symptoms typically don't begin until the engine has been run for a few minutes. The rect. recently shorted and wiped out both switch boxes and the yellow charging wires from the stator. All have been replaced and seem to be working fine. I am presently rebuilding the carbs and will be using a different remote fuel tank to try and alleviate that as a problem. Any suggestions from you Mercury guru's before I haul this baby back to the lake for another go. Thanks.........Bobo