Measuring Static Ignition Values With Peak Voltage Adapter; Spark Plug (Ngk Br 10 Ecmvx) - KTM 85 SX 2004 Repair Manual

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Measuring static ignition values with peak voltage adapter

Measuring conditions:
– cold engine
– remove starting number plate
– unscrew sparkplug, plug on and hold against ground
– all plug and socket connectors and ground connections in a
non-corroding condition
– depress the kickstarter forcefully at least 5 times for each
measurement
Check the pulse generator for output signal – white/red and white/blue
2
cables:
– Apply the red measuring tip of the peak voltage adapter to the
white/red cable and the black measuring tip to the white/blue cable,
disconnect plug
– Same measurement with CDI unit connected
Check the CDI voltage supply for output voltage – green/red and black
cables:
– Apply the red measuring tip of the peak voltage adapter to the
green/red cable and the black measuring tip to the black cable,
disconnect plug
– Same measurement with CDI unit connected
Check capacitor charging coil for output voltage – black/red and
green/white cables:
– Apply the red measuring tip of the peak voltage adapters to the
black/red cable and the black measuring tip to the green/white cable,
disconnect plug
– Same measurement with CDI unit connected
Check the primary voltage output for ignition coil control (orange
cable):
– Apply the red measuring tip of the peak voltage adapter to the
(ground) and the black measuring tip to the orange cable, CDI unit
and ignition coil connected
NOTE: If no voltage can be measured during the test, check the
respective cable for continuity before replacing any parts.

Spark plug (NGK BR 10 ECMVX)

– Set the electrode distance.
Insulator
Check for cracks and fissures.
A
LWAYS USE A SPARK PLUG WITH RESISTOR
CDI
THE UNIT
1
to disconnect the CDI unit
Multimeter display: 10 volts +/-1 volt
Multimeter display: 6 volts +/-1 volt
1
Multimeter display: 40 volts +/-5 volts
Multimeter display: 35 volts +/-5 volts
1
Multimeter display: 270 volts +/-20 volts
Multimeter display: 230 volts +/-20 volts
Multimeter display: 230 volts +/-20 volts
Electrode distance: 0.60 mm
CAUTION
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. O
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2
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THERWISE PROBLEMS CAN OCCUR IN