Secondary Air Supply System

• This model is equipped with a built-in secondary air supply system. The pulse secondary air supply sys tern is located on the cylinder head cover.

• The secondary air supply system introduces filtered air into exhaust gases in the exhaust port. The secondary air is drawn into the exhaust purl whenever there is negative pressure pulse in the exhaust system. This charged secondary air promotes burning of the unburned exhaust gases and changes a considerable amount of hydrocarbons and carbon monoxide into relatively harmless carbon dioxide and water.

If the hoses shov/ any signs nf heat damage, inspect the PAIR check valve in the PAIH reed valve cover for damage.

Remove the air cleaner housing (page b-60).

Check the PAIH (pulse secondary air injection) hoses between the PAIR control solenoid valve and cylinder-head cover for deterioration, damage or loose connections. Make sure the hoses are not cracked.

CYLINDER HEAD COVER

PAIR REED VALVE

CYLINDER HEAD COVER

PAIR REED VALVE

EXHAUST PORT

Check the air suction hose between the air cleaner housing and PAIR control solenoid valve for deterioration, damage or loose connections. Make sure the hoses are not kinked, pinched or cracked.

Secondary Air Supply System Honda

IATOR HOSE

Cbr California Emissions Routing

PAIR CONTROL VALVE"** AIR SUCTION HOST

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Responses

  • Martin Fierro
    How do i check the air filter on an 06 cbr 600 f4i?
    8 years ago
  • balbo
    What is a secondary air supply on a motorcycle?
    5 years ago
  • Sointu Merikanto
    What are secondaries on a CBR 600 F4i?
    5 years ago

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