Honda CBF190WH 2016, Shop Manual

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ELECTRICAL SYSTEM
4-22
SPARK PLUG REPLACEMENT
INSPECTION
IGNITION COIL PRIMARY PEAK VOLTAGE
IGNITION TIMING
• Spark plug inspection.
• Discard the spark plug in a accordance with the mainte-
nance schedule.  1-23
16 N·m
• Refer to "Basic Shop Manual" for the detail information of
ignition coil primary peak voltage inspection.
• Support the vehicle with its centerstand on a level
surface.
• Fuel tank shroud  3-6
• Disconnect the spark plug cap from the spark plug.
•
Connect a known-good spark plug to the spark plug cap
and ground it to the cylinder head as done in a spark test.
• With the ignition coil primary wires connected, connect
the peak voltage adaptor probes to the ignition coil
primary terminal and ground.
CONNECTION: P/Bu (+) – Ground (–)
• Check the initial voltage at this time.
STANDARD VOLTAGE: Battery voltage
• Shift the transmission in neutral, and then crank the engine
with the starter and measure the ignition coil primary peak
voltage.
PEAK VOLTAGE: 100 V minimum
• Warm the engine up to normal operating temperature.
• Connect the timing light to the spark plug wire.
• Start the engine and let it idle
IDLE SPEED: 1,500 ± 100 rpm
• The ignition timing is correct if the "F" mark on the flywheel
aligns with the index mark on the left crankcase cover.