So I bought a 400ex this Sunday. All stock and prob less then 15 total hours on it tires still have nipples on them. I'm going to change oil and filter. Prob need a new battery as well. Anything else major?
Http://I49.tinypic.com/14c5q9v.jpg

Thanks

 

Chain oil, put a UNI air filter on it, proper air in tires.

 

I went Honda got some oil and the guy game me a filter not sure what brand though

 

He gave you an AIR filter? Or oil filter? Anyway, the stock air filter will do fine. Just keep it oiled with that sticky, nasty, air filter oil. At some point though, it will get soft and crappy. Then get a UNI air filter. They really do a great job for $30 or so.

 

Lets see, what would i do.... (if i had money of course )
Some maxxis razr 2's, HMF pipe, nerf bars, tool carrier delete, heel gaurd delete, light delete, maier hood, extended a-arms, axle, beadlocks, frame powdercoat, bumper, and bars. lol I need to take apart my quad and put it back togather today...

Nice quad, but... a slip on pipe REALLY adds to the joy of having an ex

 

Make sure you put your oil filter in the right way. They are directional, the filter will be marked.

 

Thanks guys. Yes I will make sure to put oil filter in correct. Im going to clean the air filter and re grease even thought it looks clean. Ill change the oil and going to throw a new battery in it. The stock tires - should i run them at 4psi? Im not going to get new ones till these are gone.

 

Tire pressure depends on conditions. I'd run 5 for soft or sandy trails and 6 if they are hard packed.

 

Any other thoughts on psi for stock tires. I ride trails, so could be hard or soft mud, and also along river could be rocks to sand.

 

I run 5 pounds.
And the stock air filter is good, UNI makes the stock air filters for Honda
You say you are going to clean and "grease" the filter? I hope you don't mean actual grease, get some spray filter oil.