Honda CB HORNET 160R 2015, Shop Manual

Page: 52 / 336

3-14
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.
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).
Check the air supply hose and vacuum hose for
deterioration, damage or loose connections.
Make sure that the hoses are not cracked.
If the hoses
show any signs
of heat damage,
inspect the PAIR
check valve.
THROTTLE STOP SCREW
THROTTLE STOP SCREW
TACHOMETER
CONNECTOR
SPARK PLUG
CABLE
FRESH AIR
EXHAUST GAS
VACUUM HOSE
AIR SUPPLY HOSE
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
-1
(rpm)