Hello Everyone, I am new to this forum and got to say I already like it more than any Forum I have joined before.. Alot of information. So I just picked up a 99 yz400f. I changed the oil it was pretty black. I changed the oil filter and air filter as well. I changed the fuel line, and lines around the carb too. The 1/8th lines. Not sure what exactly they are. What else should I check or change? The radiator is full of fluid in it as well. But does look murky should I change it? and if so how?.. Also, there is a long black line that goes down the left side of the bike that does not look good. Can I like reroute this line to the airbox? And can someone send me a link where to purchase some cool graphics for this bike at. I have some on it but just the sides not on the tank or anywhere else. Thanks a head of time for the replies.