Pre-Start; Mowing - Exmark Laser Z Operator's Manual

FUEL FLOW
"OFF"
RIGHT TANK
LEFT TANK
4.1.10 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. 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.
4.1.11 Electronic Control Unit Malfunction Indicator: (Kohler 26 HP 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 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.

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 26 HP 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. See Section 5.1.24 for fuel priming (air purging)
instructions.
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.

4.3 MOWING

4.3.1 Open fuel shut-off valve (left or right tank).
4.3.2 Starting Engine: Operator must be in seat with the brake engaged, the blade
engagement switch disengaged, and the motion control levers out (neutral
lock position).
On a cold engine, place the throttle midway between the "SLOW" and "FAST"
positions and pull choke (except Kohler 26 HP EFI units) to the "ON" position.
Turn ignition switch to the "start" position. Release the switch as soon as the
engine starts.
IMPORTANT: DO NOT crank the engine continuously for more then ten (10)
seconds at a time. If the engine does not start, allow a 60 second cool-
down period between starting attempts. Failure to follow these guidelines
can burn out the starter motor.
After starting a cold engine (except Kohler 26 HP EFI units), gradually return
choke to the "OFF" position as the engine warms up.
VALVE POSITION
Carburetor engines
DOWN
RIGHT
LEFT
- 21 -
26 hp, EFI engine
RIGHT
DOWN
LEFT