Section 03
TROUBLESHOOTING
Subsection 01
(TROUBLESHOOTING CHART)
03-01-6
SMR2003-006_03_01A.FM
ENGINE MISFIRES, RUNS IRREGULARLY
(cont’d)
OTHER OBSERVATION
POSSIBLE CAUSE
REMEDY
Rich fuel mixture
Fouled spark plug
• Flame arrester dirty or restricted
(
if so equipped
)
• Check/replace
• Partially closed choke
(
carburetor models
)
• Check/adjust choke cable
• Carburetor adjustment
(
carburetor models
)
• Check/adjust, refer to FUEL SYSTEM
• Loose main jet (
carburetor models
) • Check, refer to FUEL SYSTEM
• Faulty fuel injector(s)
(
fuel injection models
)
• Remove and replace fuel injector(s),
refer to ENGINE MANAGEMENT
• Faulty direct injector(s) (
DI models
)
• Remove and replace direct
injector(s), refer to
ENGINE MANAGEMENT
• Defective sensor or EMS ECU
/MPEM
(fuel injection models
)
• Check faulty codes in EMS ECU or
MPEM (as applicable) memory, refer to
ENGINE MANAGEMENT
• Rotary valve shaft seal leaking
(
if so equipped
)
• Check/replace, refer to ENGINE
• Damaged reed valve
(
if so equipped
)
• Check, refer to BOTTOM END in EN-
GINE SECTION
• Leaking crankshaft seal(s) or intake
manifold (
DI models
)
• Pressure check engine, refer to
ENGINE
• Leak in RAVE valve system
(
DI models
)
• Check, refer to ENGINE MANAGEMENT
• Oil injection pump adjustment
(
2-stroke engines
)
• Check/adjust, refer to
LUBRICATION SYSTEM
• Worn needles and seals
(
carburetor models
)
• Check, refer to section FUEL SYSTEM
• Excessive rotary valve clearance
(
if so equipped
)
• Check, refer to ENGINE
• Fuel pressure fluctuating
(
fuel injection models
)
• Inspect fuel pressure regulators. Refer
to ENGINE MANAGEMENT
• High fuel pressure
(fuel injection models
)
• Check pump, regulator, injectors, hose
pinchers or if filter is plugged. Replace
if necessary
Starts, but runs poorly
• Check spark plug condition, check
fault codes in the EMS ECU or
MPEM memory, check fuel pressure
(
fuel injection models
). Also check
RAVE valves operation
(
2-stroke fuel injection models
)
• Check, refer to ENGINE
MANAGEMENT. If some work has
been performed on the unit, make sure
injector wire connectors were not
mixed. Refer to the wiring diagram for
wire colors and positions
Also fuel injection
misinjecting
• Bent or missing tooth on encoder/
trigger wheel
(
fuel injection models
)
• Check, refer to ENGINE
MANAGEMENT
• Injector wiring reversed
(
fuel injection models
)
• Check with wiring diagram
• Damaged fuel injector
(
fuel injection models
)
• Check, refer to ENGINE
MANAGEMENT
• Incorrect rotary valve timing
(
if so equipped
)
• Check/adjust, refer to ENGINE
• Excessive rotary valve clearance
(
if so equipped
)
• Check, refer to ENGINE
www.SeaDooManuals.net
Summary of Contents for 2003 GTI LE RFI
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Page 767: ...NOTE www SeaDooManuals net ...
Page 768: ...NOTE www SeaDooManuals net ...
Page 769: ...F00Z0D 2003 GTI MODEL WARNING www SeaDooManuals net ...
Page 770: ...F00Z0C 2003 GTI LE MODEL WARNING www SeaDooManuals net ...
Page 771: ...F00Z0E 2003 GTI LE RFI MODEL WARNING www SeaDooManuals net ...
Page 772: ...F00Z0J 2003 RX DI MODEL WARNING www SeaDooManuals net ...
Page 773: ...F00Z0I 2003 GTX DI MODEL WARNING www SeaDooManuals net ...
Page 774: ...F00Z0K 2003 XP DI MODEL WARNING www SeaDooManuals net ...
Page 775: ...F00Z0F 2003 GTX 4 TEC MODEL WARNING www SeaDooManuals net ...
Page 776: ...F00Z0G 2003 GTX 4 TEC MODEL WITH AUXILIARY DESS MODULE WARNING www SeaDooManuals net ...
Page 777: ...F00Z0B 2003 GTX 4 TEC AND GTX 4 TEC SUPERCHARGED MODELS WARNING www SeaDooManuals net ...
Page 779: ...www SeaDooManuals net ...
