Air Filter Cleaning - Yamaha BIGBEAR YFM400NM Owner's Manual

When installing the spark plug, always
clean the gasket surface and use a new
gasket. Wipe off any grime from the
threads and tighten to the specified torque.
Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kg, 12.5 ft·lb)
EBU00589*

Air filter cleaning

NOTE:
There is a check hose at the bottom of the
air filter case. If dust or water collects in
this hose, empty the hose and clean the air
filter element and air filter case.
1. Check hose
1. Remove the seat. (Refer to page 4-15
for removal and installation proce-
dures.)
2. Remove the air filter case cover.
8-12