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IMPORTANT: It is essential that all operator safety mechanisms
be
connected and in proper operating condition prior to mower use.
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
PROBLEM
NO
FUEL
IMPROPER
FUEL
DIRT IN
FUEL LINE
DIRTY AIR
FILTER
FAULTY
SPARK
PLUG
ENGINE
OVERLOADED
BLOCKED
FUEL
FILTER
INCORRECT
OIL
LEVEL
DIRTY
AIR
SCREEN
INSUFFICIENT
BATTERY
CHARGE
Will not start
X
X
X
X
X
X
X
Hard starting
X
X
X
X
X
X
X
Stops suddenly
X
X
X
X
X
X
X
Lacks power
X
X
X
X
X
X
X
X
Operates erratically
X
X
X
X
X
X
X
Knocks or pings
X
X
X
Skips or misfires
X
X
X
X
X
Backfires
X
X
X
X
X
Overheats
*
X
X
X
X
X
High fuel
consumption
X
X
X
X
* On Kawasaki Liquid Cooled units check for dirty radiator core.
7.4 ENGINE ERROR CODES – KOHLER 26 HP EFI UNITS ONLY
7.4.1 Electronic Control Unit Malfunction Indicator
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.
Summary of Contents for Laser Z LZ18KC523
Page 1: ......
Page 57: ... 52 8 ELECTRICAL DIAGRAM KOHLER 18 22 23 25 HP AIR COOLED UNITS Serial Nos 251 999 and Lower ...
Page 58: ... 53 ELECTRICAL DIAGRAM KOHLER 23 25 HP AIR COOLED UNITS Serial Nos 252 000 and Higher ...
Page 59: ... 54 ELECTRICAL DIAGRAM 22 23 HP KAWASAKI LIQUID COOLED UNITS ...
Page 60: ... 55 ELECTRICAL DIAGRAM KOHLER 26 HP EFI UNITS Serial Nos 251 999 and Lower ...
Page 61: ... 56 ELECTRICAL DIAGRAM KOHLER 26 HP EFI UNITS Serial Nos 252 000 and Higher ...
Page 62: ... 57 ELECTRICAL DIAGRAM 23 HP KAWASAKI AIR COOLED ...
Page 63: ... 58 ELECTRICAL DIAGRAM 27 HP KAWASAKI LIQUID COOLED ...
Page 64: ... 59 9 HYDRAULIC DIAGRAM ...
Page 67: ... 62 NOTES ...
Page 68: ... 63 SERVICE RECORD Date Description of Work Done Service Done By ...
Page 69: ... 64 ...