Suzuki RM-z450 Owner's Service Manual page 174

12-5 FI SYSTEM DIAGNOSIS
• When disconnecting and connecting the ECM, make sure to
stop the engine, or electronic parts may get damaged.
WHEN USING THE BATTERY LEAD WIRE (Optional patrt:
36890-28H00)
• Battery connection in reverse polarity is strictly prohibited.
Such a wrong connection will damage the components of the
FI system instantly when reverse power is applied.
• Removing the condenser coupler of a running engine is
strictly prohibited.
The moment such removal is made, damaging counter elec-
tromotive force will be applied to the ECM which may result in
serious damage.
INCORRECT