NOTE: After carefully checking the above steps, attempt to start the engine. If it does not start, contact your authorized Exmark service dealer.

IMPORTANT: It is essential that all Operator Safety Mechanisms be connected and in proper operating conditions prior to the use of the mower.

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 tables list some common causes of troubles. Do not attempt to service or replace major items or any items that call for special timing or adjustment procedures (governor, valves, etc.). Have this work done by your Engine Service Dealer.

ENGINE TROUBLESHOOTING TABLE

PROBLEM

NO

IMPROPER

DIRT IN

DIRTY AIR

FAULTY

ENGINE

BLOCKED

INCORRECT

DIRTY

SPARK

FUEL

OIL

AIR

FUEL

FUEL

FUEL LINE

FILTER

OVERLOADED

 

 

 

 

 

 

 

 

 

 

 

PLUG

 

FILTER

LEVEL

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

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Exmark FMD 524, FMD 604 manual Engine Troubleshooting Table, Problem