I believe the cam chain tensioner on the 400ex is automatic, as with most if not all of the newer quads.
Always replace the timing chain, sprockets and tensioner rails whenever you remove the head.
chcek out your loacl partshouse and get a timing book
Yes it would all the models are almost the exact same.
the answer is yes. since the tensioner is hydraulic and require oil supplied from the oil pump to add pressure to the sleeve/guide.
0 to 50 on a good day
not gospel but 4.0 sohc engine is an interference major damage if timing chain or timing chain tensioner breaks
There is a bolt in the center of the tensioner (silver). Turn it counterclockwise to loosen it, and then turn the tab with the hex hole in it to the left as well. You'll need a hex-key for this second step.
0.028
on the front of the frame and on the bottom of the motor by the sprocket
take the plug out of the side of the bottom where the stator is,is a lite and find T[top dead center] then find T on your cam and align then with the chain any more questions mattgalloway2009@gmail.com
there is 2 clamps. one on the front and one on the back
Are you replacing a whole clutch or just the clutch plates?