Honda CRF450R 2009 Service Manual page 91

CRANKCASE BREATHER
'09~ ·'2: Remove the crankcase breather hose drain plug, then
drain any fluids or dirt from the crankcase breather hose
Into a proper container.
Reinstall the drain plug.
Aher '12:
Remove the crankcase breather hose drain plugs , then
drain any fluids or dirt from the crankcase breather
hoses into a proper container.
Reinstall the drain plugs.
SPARK PLUG
REMOVAL
Clean around the
spark plug base
wIth
compressed ai,
before removing,
and be sure that no
debris is allowed /0
en/erlhe
combustion
chamber.
Hang the fuel tank to the left side of the frame
(page 4-6).
Disconnect the spark plug cap.
Remove the spark plug, and inspect it for damage.
Inspect or replace as described in the maintenance
~;.;.;~~
schedule (page 4-4),
MAINTENANCE
4·11