funny u you mentioned the wet and dry, it first started when it was raining, and the past 2 days it has been raining.
i can feel the vibration under my seat, it like a rattle that stops... when i try to throttle and accelerate it makes a sound like its struggling. tonight when i idled it made the noise..
so far its happened in the wet only. it first happened a week ago, and only started again the past 2 days, in the wet.. any ideas?