CBR F3 to XX

I went through my pilot sports in about 5k and was wondering what was the average life everyone was getting for their rear tire and what tire were you using?

I was looking at getting a turbo aswell for the bird but I cant find any kits for the carb models, does anyone have experience with any?

Recently I had my 98 blackbird parked for awhile and after warming it up when i tried to leave it was stumbling like it was out of gas. After jerking it (mostly to get enough speed to get to a gas station) i guess that got fuel to the right spot and she was running fine and only needed 5.2 gallons to fill up. When i bought the bike I was told since it has a gas gauge there is no petcock with reserve, is this true because if its not that would explain what happened. Also since I have never ridden it to the point where the lil reserve light goes on on the gas gauge (and ive been to about 190-200miles) when does it usually come on

Do you have any idea how much weight that and the swingarm is taking off of my XX?

I just bought a 1998 CBR-XX and it has a single muffler with a two brothers can on it. After searching for it I found that two brothers only sells a 2 muffler system and im wondering just what is on my bike. But i must say this bike is alot lighter than stock with that exhaust system (the cans they say take out 15 lbs while using 2 so who knows how much weight im actually losing with the full single system) and the center stand has been taken off.