Hey guys, I have an 06 400EX that has a loud engine tick. Its not "the" engine tick all 400s have. Those are a smooth tick. This one is weird. I can start the bike up and ticks like crazy. Rev it up and let it idle back down and its gone… then suddenly starts ticking again. Some times it will tick/stop ticking in 20 second increments. Weird? Does this hot and cold.

** NOT trying to be rude… But I need helpful replies… Lets cover the basics first.

**The battery is fully charged, and there is gas getting to the engine**
^^^ :icon_ laughup::icon_ laughup:You guys have no idea how many times ive been asked that when the problem does not have any relation to that lol.:icon_ laughup::icon_ laughup:

-The valves are in spec. First thing i did. :bling:
-Timing chain replaced in early ’14
-Guides have little to no wear
-Rockers all feel tight, no play.
-Cam decompression removed (thought that was the problem)
-It does have the 440 kit on it.
-Tensioner retracts and expands normally, does not back off
-No smoking (so not piston slap Kit installed 6 months before timing chain)
-Cam lobes measure in spec… , HOWEVER, Why does honda not give a spec for the OD of the cam ends where they slide into the bearings???
Also, does the cam normally move side to side without tension on the chain? In a relaxed position? Mine will move side to side but only about .005" , So i dont think thats it. When i release the tensioner, everything is tight.

Any ideas????

:funnysuzuki::funnysuzuki::icon_ devil: