Welcome to the forum. I have ridden in rain numerous times, several hundred miles on occasion. The only problem I had was a result of my own doing. A popular airbox modification involves cutting out the bottom of the air filter and then cutting a matching hole in the bottom of the airbox. Added quite a lot on top end, along with opened pipes and appropriate jetting.
I rode from here in non-stop, torrential rains about 100 miles about highway speeds, spent the night, then off again in steady rain the next morning. Water from the back tire sprayed onto the top of the swing arm and splashed right up into the airbox, saturating the filter. Bike would hardly run until I figured it out and went the rest of the way sans air filter. I closed the hole up, haven't had a problem since. Not so much as a hiccup. Even then, It took 150 miles or so in steady, heavy rain before it was a problem.
