11.ELECTRICAL SYSTEM
11-5
has a DC capacitor igniter and a high voltage ignition coil, which can raise the voltage of the battery from 12V
to more than 15000V, which also can be transported to the spark plug by high-voltage wire to generate spark
discharge.
(4). Sensors:
including: a. The oxygen sensor, which mounted on an exhaust pipe to detect oxygen concentration
in exhaust gases, can realize the closed-loop regulation of the mixture concentration, and when the closed-loop
adjustment, the output of 0 ~ 0.9V alternating signal can be achieved; b. cylinder temperature sensor, which is
installed on the engine cylinder head to detect the engine body temperature, will affect the starting thickening
amount; c. Crankshaft position sensor, which is integrated on magneto to provide crankshaft angle signal, is the
time reference for fuel injection and ignition control; d. The throttle position sensor is mounted on the throttle
body to measure the rotation angle of the throttle valve.
(5). Other:
including
：
a. throttle body, which controls air intake through throttle pull wire; b. Fault alarm lamp,
which is installed on the dashboard for fault alarm; c. Battery, door lock, fuse for power supply to EFI system.
LGNITION SYSTEM
LGNITION COIL
Primary peak voltage of ignition coil
Remove the spark plug cap as shown in the right
figure. Install the new spark plug to the cap. The
cylinder is connected to grounding.
Connect the multimeter and the peak voltage
adapter as follows:
+Probe: Green wire or grounding wire
-Probe: Green / yellow wire
NOTE:
Make sure the battery voltage ≥ 12V. The
ignition coil wires are connected.
When using multi meter and the peak voltage
adapter, please refer to the user manual.
Move the gear to the neutral position, turn on the ignition device.
Press the start button and crank the engine for a few seconds. Then measure the primary peak voltage of the
ignition coil;
