So i am new to motorcycles and dont know a whole ton about them. I bought a 2000 Yamaha V-star 650 classic and have discovered a problem with how it starts. It doesn't have a problem running at all, its just when its off for a while, sometimes as little as 20 minutes, i have to crank the starter for a long time before the engine will start up. The guy that sold me the bike told me that i have to turn off the pepcock everytime i turn off the bike. When i do, it makes it a little easier to start the bike but not always. Im just not sure where to start into fixing it. Any Ideas?