I picked up a 2001 400ex over a week ago. I am going to change the oil in it. I found a how-to on another forum http://www.atvriders.com/articles/oilchange400ex.html I was looking for a recommendation on oil. I live in Florida and it is above 70degrees 95% of the year here. I am not sure what kind of oil was in it before. Can anyone give me a recommendation and also any tips for changing the oil. It seems pretty straight forward, but if there is something I should look out for, I would appreciate any insight.

Thanks,

LeTHaL

 

I couldn't get your link to work, so: http://www.atvriders.com/articles/oilchange400ex.html


Absolutely be sure you do not put the oil filter in backward!

If you pick a motorcycle specific oil that is API SG/JASO MA, you can't go far wrong. I like the ester synthetic oils, like RedLine, Maixma, Motul, and Klotz, but they are all pricey. If you can't find anything else, run Honda HP4 (but not HP4M).

Good oil reads: http://www.thumperfaq.com/oil.htm


http://www.sportrider.com/tech/146_0308_oil/index.html


http://www.p1-performance.com/pdf/oildoc.pdf