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b) Check blade spacers on each blade, the axle positions on each side of the unit, and
the spacers on each front caster wheel. They must be equal.
c) Check caster mounting brackets to be sure all bolts are tight.
d) Check blades tip to tip for straightness. (They should be within 3/16” (4.8 mm), or
one blade width from being in line.)
6.3 BLADES DO NOT STOP WHEN DISENGAGED
a) Check the blade brake adjustment. (See Section 4.2.6)
b) Check the belt guide under rear deck to make sure they are properly set (See
Section 4.2.7) and check the PTO engagement adjustment (See Section 4.2.3).
6.4 ENGINE WILL NOT START
a) Check that the key switch is in the “Run” position.
b) Check that the choke is in the “ON” position for a cold engine or in the “OFF”
position for a warm engine. See 3.3.2.
NOTE: Kawasaki engines may need to be choked even when warm.
c) Make sure speed control lever is in the “true neutral” position. (See 4.2.9).
d) Check that the PTO is disengaged and the PTO switch is depressed.
e) Check that there is fuel in the tank and that the fuel valve is open.
f) Check that the spark plug wire(s) are properly connected.
g) Check for loose or faulty wiring connections. If it is necessary to disconnect wire
connectors, Do Not pull on the wires while disconnecting.
h) Check for corrosion at all wiring connections. Even minor corrosion may cause a
faulty connection. Clean connector terminals thoroughly with electrical contact
cleaner, apply dielectric grease and reconnect.
IMPORTANT: It is essential that all operator safety mechanisms be connected
and in proper operating condition prior to mower use.
NOTE: After carefully checking the above steps, attempt to start the engine. If it
does not start, contact your authorized Exmark service dealer.
ENGINE TROUBLESHOOTING
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 or
adjustment 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
Will not start
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