Disconnect the MAP sensor connector (A).

Remove the MAP sensor (B).
Install the parts in the reverse order of removal with a new O-ring (C).
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 ...
Engine Oil/Air Separator Installation
Remove all of the old liquid gasket from the oil/air separator mating
surfaces, the bolts, and the bolt holes.
Clean and dry the oil/air separator mating surfaces.
App ...
Flywheel Inspection
Remove the ring gear holder.
Inspect the ring gear teeth for wear and damage.
Inspect the clutch disc mating surface on the flywheel for wear, cracks,
and burning.
...