Hi all. I have just purchased a 98 YZ 400F after a 6 and one half year lay off. Came off RM 250 and was planning to purchase another 2 stroke, but came across a deal too good to pass up. Since I have no real experience with a thumper I thought this would be a great place to seek advice. Any feedback would be appreciated. Looking forward to visiting here. Oil. What do you recommend. I am leaning toward a synthetic after reading several articles. I saw Motul, Spectro, AMSOil Honda, and Yamaha oil at the shop. Any recommendations. Flywheel. Shocked at how light the flywheel is for a 4 stroke. Any experience with Flywheel weights. 60% of my time will be in the woods. Gearing. Right now it is a 14-49. Not sure if this is stock. The previous owner hasn't mailed me the shop manual yet. Graphics. Factory Effex Graphics look great except on the tank. Gas spills got em. What is good to use to glue them back down?? Thans for any replies. I'm sure I'll be here often as I get more seat time.