I have a 2003 susuki ltz400. Its been acting funny since a couple days ago. Today i rode it around the block. When it was cold it was just fine. When i started going and was going for a minute or two it became alot harder to down shift into first, it would down shift but you would have to press it kinda hard. So i started heading home and the bike started to shutter. Like a hesitation in going like i would be holding the gas it would go then stop then go. Then i almost got home it got stuck in 2nd and wouldnt go up into any gear. Then i stop and get into first and pull it into my garage and then it stalls. Any ideas would be greatly appreciated. Thanks