Exmark Metro HP MHP3614KA Operator's Manual page 36

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
NO
PROBLEM
FUEL
X
Will not start
X
Hard starting
X
Stops suddenly
Lacks power
Operates
erratically
Knocks or pings
Skips or misfires
Backfires
Overheats
High fuel
consumption
IMPROPER DIRT IN DIRTY AIR
FUEL FUEL LINE FILTER
X X
X X X
X X
X X X
X X X
X
X X X
X X
X X
X
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FAULTY BLOCKED
ENGINE
SPARK FUEL
OVERLOADED
PLUG FILTER
X X X
X X X
X X
X X X
X X X
X
X
X X
X
X X
INCORRECT DIRTY
OIL AIR
LEVEL SCREEN
X X
X X
X
X
X
X
X X
X