All my information is from a gearing standpoint.. And everything is relitive to your bike.. It might be different..
1. A little better gas mileage if you are going a distance, city mileage will suffer
2. The chain might last a little longer, but I seriously doubt you'll notice a difference
3. Your acceleration will slow down
4. Top gear roll on will slow down too.
5. I'm not sure where the speedo pickup is, if it's taken off the front sprocket, then it'll make it wrong, if it's on the front wheel like most bikes, then it shouldn't change at all..
6. Your overall top speed should increase a tiny bit, but with a bike like this that little bit wouldn't matter unless you hit those speeds all the time..
7. It's a wet clutch setup, so it'll last quite a while anyways, but it will burn the clutch a little faster, but I wouldn't worry about it..
Personaly, I wouldn't do it, but it's up to you for your purposes.. If I were going to do it, I'd drop one or two teeth on the rear rather than up any on the front.. Just my opinions.. Take them as you will