Secondary Air Supply System; Evaporative Emission Control System - Honda CBR954RR 2002 Service Manual

SECONDARY AIR SUPPLY SYSTEM

This model is equipped with a built-in secondary
air supply system. The pulse secondary air supply
system is located on the cylinder head cover.
The secondary air supply system introduces fil-
tered air into exhaust gases in the exhaust port.
The secondary air is drawn into the exhaust port
whenever there are negative pressure pulses in the
exhaust system. This charged secondary air pro-
motes burning of the unburned exhaust gases and
changes a considerable amount of hydrocarbons
and carbon monoxide into relatively harmless car-
bon dioxide and water.
Remove the air cleaner housing (page 5-64).
Check the PAIR (pulse secondary air injection) hoses
if the hoses show
any signs of heat between the PAIR control solenoid valve and cylinder
damage, inspect
head cover for deterioration, damage or
the PAlR check
nections. Make sure the hoses are not cracked.
reed vaive cover
for dainage.
Check the air suction hose between the air cleaner
housing and PAIR control solenoid valve for deterio-
ration, damage or loose connections.
Make sure the hoses are not kinked, pinched or
cracked.
EVAPORATIVE EMISSION CONTROL
SYSTEM (California type only)
Check the hoses between the fuel tank, EVAP canister,
EVAP purge control solenoid valve for deterioration,
damage
Check the EVAP canister for cracks or other damage.
Refer to the Vacuum Hose Routing Diagram label
(page
1-40)
for hose connections.
or loose connections.
and Cable & Harness Routing (page 1-28)
loose
con-
EXHAUST PORT
EVAP PURGE CONTROL SOLENOID VALVE
MAINTENANCE
PAIR REED VALVE
EVAP CANISTER