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KINROAD 150 SERVICE MANUAL
Clip the ignition timing indicator light wire clip on the high-voltage end of the ignition coil.
Start the engine and let it run at idle. At this time, observe if the mark on the crankcase aligns with the "F"
mark on the rotor. If the difference is between +/-3ｏ, it indicates correct ignition timing; on the contrary, if it is
off +/-3ｏ, it should be adjusted.
Slowly increase the engine rpm (when the 150 model increases to 5000 r/min). At this time, if the mark on
the crankcase aligns with the rotor ignition advance angle mark, the advance angle device is good; if not, it
should be adjusted or replaced.
When adjusting, the trigger winding can be loosened to adjust the angle between if and the
ignition-charging coil to adjust the ignition time.
IGNITION SYSTEM INSPECTION
When the spark plug does not spark, first inspect the wires, and if the connecting part is loose or contacts
bad, you can follow the electric circuit and take the method of measuring the voltage of every point to find
out the trouble. Please refer to the previous picture for the following inspection.
Remove the original spark plug and install a new one if the plug is bad.
It is important that every electric circuit wire connects correctly.
It is important that the cylinder compression pressure is normal.
Connect the negative end of the multimeter with the positive connecting iron of the primary ignition coil
(black/yellow wire.)
Press the starting button or use the kick starter, and read the voltage value on the multimeter. The highest
voltage value should be above 112V.
When measuring the voltage, do not touch the metal part of the multimeter with finger, or an electric
shock can happen.
Remove the 4-core and 2-core connector of the CDI component.
Connect the positive end of the multimeter with the ignition charging coil (black/red wire end) of the 2-core
connector, and the negative end with the ground wire end (green end) of the 4-core connector.
Press the starting button, or use the kick starter, and measure the highest voltage of the ignition charging
coil. It should be more than 122V.
When the measured highest voltage of the ignition charging coil is not normal, then disconnect the
generator connector to make further measurement.
If it is measured that the CDI component end is abnormal, however, the terminal voltage of the generator is
normal, then there is a bad wire or bad connection.
When both are not normal, then it is a bad ignition charging coil.
Remove the 4-core and 2-core of the CDI component.
70
VERSION 1, DEC., 2005
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