Check the play of the release bearing by spinning it by hand. If there is excessive play or noise, replace the release bearing.

NOTE: The release bearing is packed with grease. Do not wash it in solvent.
Throttle Body Removal/Installation
caution
Do not insert your fingers into the installed throttle body when you
turn the ignition switch to ON (II) or while the ignition switch is in
ON (II). If you d ...
Brake and Clutch Fluid
Check the brake fluid level in the reservoirs monthly.
Replace the brake fluid according to the time recommendation in the maintenance
minder schedule.
Always use Honda Heavy Duty Brake Fluid DOT ...
PCV
Fuel and Emissions System Description - PCV System
Positive Crankcase Ventilation (PCV) System
The PCV valve prevents blow-by gasses from escaping into the atmosphere
by venting them into the ...