Pre-Start - Exmark Lazer Z Operator's Manual

NOTE: This switch is not a low oil sensor and will not alert the operator if the
engine oil is low.
4.1.10 Fuel Shut-Off Valve: Located directly below right side of console, next to cubby.
The fuel shut-off valve is used to shut off the fuel when the machine will not be
used for a few days, during transport to and from the job site, and when parked
inside a building. The valve has three positions, each position made in 1/4 turn
increments.
NOTE: The positions for the Kohler EFI units are different than all other units.
Reference the following table for the correct locations.
FUEL FLOW
"OFF"
RIGHT TANK
LEFT TANK
4.1.11 Fuel Gauge: Located on the left fuel tank.
The fuel gauge monitors the amount of fuel in the left tank only. Use the fuel
from the right fuel tank first. When the right fuel tank is empty switch to the left
fuel tank. Fuel gauge will monitor the remaining fuel.
4.1.12 Drive Wheel Release Valves: Located on the top left front corner of hydrostatic
pumps. Drive wheel release valves are used to release the hydrostatic drive
system to allow the machine to be pushed without the engine running. Unhook
seat latch and tilt seat up to gain access to pumps.
With a 5/8 wrench, turn both valves one turn counter-clockwise to release drive system.
Turn clockwise to reset system. DO NOT overtighten. DO NOT tow machine.
4.1.13 Electronic Control Unit Malfunction Indicator: (Kohler EFI units only) 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 right fuel tank to the
right of the hour meter. Follow the troubleshooting steps outlined in the Kohler
engine operator's manual if the MIL is illuminated.

4.2 PRE-START

4.2.1 Fill fuel tanks. For best results use only clean, fresh regular grade unleaded
gasoline with an octane rating of 87 or higher. Regular grade leaded gasoline
may also be used; however, combustion chamber and cylinder head will require
more frequent service. See Engine Owner's Manual.
DO NOT add oil to gasoline.
DO NOT overfill fuel tank. Never fill the fuel tank so that the fuel level rises
above a level that is 1/2" below the bottom of the filler neck to allow for fuel
expansion and prevent fuel spillage.
IMPORTANT: The fuel system for Kohler EFI units must be purged of all air
prior to start up if the engine has been allowed to run out of gas or the system
has been disassembled. Turn the key to the "start" position for approximately 30
seconds. If engine does not start, wait 1 minute to allow starter to cool down
before attempting to start engine again.
4.2.2 Make sure you understand the controls, their locations, their functions, and their
safety requirements.
4.2.3 Refer to Maintenance, Section 5, and perform all the necessary inspection and
maintenance steps.
VALVE HANDLE POSITION
Carburetor engines
DOWN
RIGHT
LEFT
- 22 -
Kohler EFI
RIGHT
DOWN
LEFT