Report "Hi, I just had the same problem. However, I bought the bike from some guy and didn't ask him about the warranty. He bought it back in 2009 who knows if it still has it. It needs new valves, piston, piston rings, cam chain, chain tensioner ect. The numbers are totaling up! Now the problem is that apparently qlink doesn't sell the valve guide separately so one needs to buy a completely new HEAD! ($410) yeah right!!! Any suggestions?"