Suzuki drz400s 2007 o-ring is leaking on cam tensioner

[gregtomo]

What is the best way to replace the o-ring that is leaking on the side of the DRZ engine? Have an aftermarket cam chain tensioner that has developed a small oil leak likely because the oring has failed. Thanks for your responses. Greg

[150ron]

I also have a 2007 S and the TT manual cam chain tensioner leaks a little bit too,  but its not leaking down or in drops,  just a bit of oil residue around the MCCT,  i just wipe it down every now and then. 

[gregtomo]

Yes that is the same in my case. It's just oil residue that you can wipe off. Perhaps it's nothing to worry about but I like a clean engine and if its an easy fix I like to fix it. Thank you for your help if you know how to fix