Join Date: Oct 2010
Location: Gainesville, Fl
400EX cam chain and/or valves
Hell there!....i bought a used 2002 400 EX. IT runs really good, it has good compression, and is really strong. It is making a pretty loud ticking noise when running and I am thinking it is either:
a) the valves
b) the cam chain tensioner
I was wondering if those to "guesses" sound correct? I have never adjusted the valves or the cam chain tensioners...is it a difficult job?
I am going to get a video of it so you can hear the noise...maybe that will help with a diagnosis. Thanks! for any and all advice Also does anyone have a digital manual?