I feel like a moron asking, but I got a '06 YZ450f and I forgot my manual back in San Diego and I'm home in Arizona. I've only changed the oil once and that was 2+ months ago so remembering how much engine oil I need is kinda hard. I'm forsure it's 1 liter, but I want to make sure. I'm going to the track tonight so if someone could help me out quick, I'd appreciate it. Thanks.