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.
Connecting Rod and Crankshaft End Play Inspection
Remove the oil pump.
Measure the connecting rod end play with a feeler gauge (A) between the
connecting rod (B) and the crankshaft (C).
Connecting Rod End Play
...
If the Malfunction Indicator Lam Comes On or Blinks
■ Reasons for indicator lamp to come on or blink
• Comes on when there is a problem with the engine emissions control
system, or the fuel fill cap is missing, or loose.
• Blinks when en ...
Brake/Clutch Fluid
Specified fluid: Honda Heavy Duty Brake Fluid DOT 3
Use the same fluid for both the brakes and clutch.
NOTICE
Brake fluid marked DOT 5 is not compatible with your
vehicle’s braking system and ca ...