Before you crank it over look inside the gas tank. One of the good things about 10% ethanol gas is it starts turning brown pretty quickly (within months) if it was not stabilized before the bike was stored. So you can just look at it with a flash light and see if its gone bad.
If the gas in not clear drain it out and flush the fuel lines. Also if the tank is empty look for rust.
The most common problem with carb'd bikes that were parked for a long time is someone starts them up with the old gas, thinking running it just a little bit wont make it any worse, and sucks the jello and goo from the bottom of the tank into the carbs. Then you need to take them apart and clean every port and passage.
If you drain the old fuel out of the tank and fuel lines, and put Seafoam or another carb cleaner in with the fresh gas, you can at least start the bike up and see how it runs, and you wont make it any worse. Sometimes thats all you need, and after running a full tank with Seafoam the bike will run fine.
The most important thing to watch out for if you do this: when you turn the key on and energize the fuel pump (these carb'd bikes do have a fuel pump) check the overflow tube to make sure you dont have a float stuck open overflowing the carb.
Last edited by KCW; 12-12-2018 at 09:25 AM.