Honda TRX400X 2009 Owner's Manual page 150

Drive Chain
LEFT SIDE
2. Check drive chain slack at several points along the chain. The slack
should remain constant. If it isn't, some links may be kinked and
binding. Lubricating the chain will often eliminate binding and
kinking.
Excessive chain slack may allow the drive chain to damage the engine
cases.
3. Inspect the drive chain for:
damaged rollers
loose pins
dry or rusted links
kinked or binding links
excessive wear
damaged or missing O-rings
Replace the drive chain (page
or kinks that cannot be freed. Lubricate the drive chain (page
appears dry or shows signs of rust. Lubricate any kinked or binding
links and work them free. Adjust chain slack if needed.
Servicing Your Honda
142
(1)
(1) drive chain
147 ) if it has damaged rollers, loose pins,
1 3/16 1 9/16 in −
−
(30 40 mm)
146 ) if it