
Tools and equipment
90
Table 2.5 Analyser connections
Connection Purpose or one example of use
Battery positive Battery and charging voltages
Battery negative A common earth connection
Coil positive To check supply voltage to coil
Coil negative (adapters are available
for DIS)
To look at dwell, rpm and primary
waveforms
Coil HT lead clamp (adapters are
available for DIS)
Secondary waveforms
Number one cylinder plug lead
clamp
Timing light and sequence of
waveforms
Battery cable amp clamp Charging and starting current
Oil temperature probe (dip stick hole) Oil temperature
Vacuum connection Engine load
Exhaust pipe Emissions testing
2.4 Emission testing
2.4.1 Introduction ...