Trouble Shooting - Exmark LAZER Z Operator's Manual

For Exmark Mower Parts Call 606-678-9623 or 606-561-4983
PROBLEM
Will not start
Hard starting
Stops suddenly
Lacks power
Operates erratically
Knocks or pings
Skips or misfires
Backfires
Overheats
High fuel
consumption
6.4 ENGINE WARNING SYSTEMS
For Kohler EFI Units Only:
6.4.1 Electronic Control Unit Malfunction Indicator
When a problem occurs, do not overlook the simple causes. For example:
starting problems could be caused by an empty fuel tank.
The following table lists some of the common causes of trouble. Do not attempt
to service or replace major items or any items that call for special timing of
adjustments procedures (such as valves, governor, etc.). Have this work done
by your Engine Service Dealer.
ENGINE TROUBLESHOOTING TABLE
NO IMPROPER DIRT IN
FUEL FUEL FUEL LINE
X X
X X X
X X
X X
X X
X
X X
X
X
*
The electronic control unit (ECU) continuously monitors operation of the EFI
system. If a problem or fault within the system is detected, the malfunction
indicator light (MIL) is illuminated. The MIL is the red light located on the control
console between the key switch and the throttle controls. Follow the
troubleshooting steps outlined in the Kohler engine operator's manual if the MIL is
illuminated.
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FAULTY
DIRTY AIR ENGINE
SPARK
FILTER OVERLOADED
PLUG
X X X
X X X
X X
X X X
X X X
X
X X
X X X
X X
X X X
43
BLOCKED INCORRECT DIRTY
FUEL OIL AIR
FILTER LEVEL SCREEN
X
X
X
X X
X
X X
X
X
X
X
X
X
X
X
INSUFFICIENT
BATTERY
CHARGE
X