This is my first post of probably many : I am wondering if any of you 640 owners have experienced the following problem. I have an 03 adventure and every once in a while, usually out on the highway, the engine cuts out for a split second. This usually happens at around 5000 r.p.m and more frequently when conditions are wet. I first suspected water in the fuel and maybe the engine digested a droplet so I drained the carb a few times to put an end to that theory. It did it again the other day and it almost seems like an ignition cutout for a fraction of a second. Oh yeah once again it was wet [when hasn't it been in the last month in this part of the world]. The spark plug is fresh so the next thing I'll check is for any rubbed wires which could be shorting out. I'll have a good chance to do this when I have to repair the warranty repair on the leaky valve cover. [This seems to be a chronic problem with some 640s]. Anyways this hiccup is hard to diagnose because of its infrequent nature. Any ideas?