Top ends

[Nitro27]

Hey guys my brothers 05 trx400ex needs a valve adjustment and he was wondering if he should upgrade anything while in there ? It's all stock so any changes to help performance just post

[Nitro27]

And what's the best gaskets ect.... To buy

[Blodg]

To do a valve adjustment all you do is remove the valve covers. Nothing from the top end is actually removed so no opportunity for upgrades while just performing a valve adjustment.

[ben300]

http://www.atvriders.com/articles/valveadjustment400ex.html

[Nitro27]

He wanted to say thanks for the quick help