Engine Idle Speed; Secondary Air Supply System - Honda CB HORNET 160R 2015 Shop Manual

MAINTENANCE

ENGINE IDLE SPEED

Inspect and adjust the idle speed after all other engine
•
maintenance items have been performed and are within
specifications.
The engine must be warm for accurate adjustment. Ten
•
minutes of stop-and-go riding is sufficient.
Warm up the engine to normal operating temperature, shift
the transmission into neutral and place the motorcycle on
a level surface.
Connect a tachometer to the spark plug cable and select
the mode according to its manufacturer's instructions.
Turn the throttle stop screw as required to obtain the
specified idle speed.
IDLE SPEED: 1,400 ± 100 min

SECONDARY AIR SUPPLY SYSTEM

The secondary air supply system introduces filtered
•
air into the exhaust gases in the exhaust port. Fresh
air is drawn into the exhaust port by the function of the
PAIR control valve.
This charged of fresh 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 vapour.
Remove the fuel tank (page 2-3).
If the hoses
show any signs
Check the air supply hose and vacuum hose for
of heat damage,
deterioration, damage or loose connections.
inspect the PAIR
Make sure that the hoses are not cracked.
check valve.
3-14
(rpm)
-1
THROTTLE STOP SCREW
THROTTLE STOP SCREW
SPARK PLUG
CABLE
CONNECTOR
TACHOMETER
FRESH AIR
EXHAUST GAS
AIR SUPPLY HOSE
VACUUM HOSE