Hi, I'm a new member who just recently bought a 2007 FMX 650 and have encounted an unexpected problem. I decided to change the spark plug but had difficulty in unscrewing it as it was really hard, as a result the plug broke off leaving the full tread in the head. The only way to remove the broken plug was to lift the complete head. I am now faced with the problem of not knowing what the torque setting on the head bolts should be.
Can anyone please help me?