Sea-doo RX Shop Manual page 51

ENGINE HARD TO START
OTHER OBSERVATION
ENGINE STARTS BUT RUNS ONLY AT IDLE SPEED
OTHER OBSERVATION
ENGINE MISFIRES, RUNS IRREGULARLY
OTHER OBSERVATION
Weak spark
SMR2000-042-03-01.FM
Subsection 01 (TROUBLESHOOTING CHART)
POSSIBLE CAUSE
• Water in fuel reservoir
• Mechanical engine failure
• Spark plug faulty, fouled or worn out
• Low fuel pressure (DI models)
• Low air pressure (DI models)
• Water in fuel
POSSIBLE CAUSE
• DI models: The DI system is in limp
home mode.
POSSIBLE CAUSE
• Fouled, defective, worn spark plugs
• Faulty MPEM
• Sheared flywheel key
• Too much oil supplied to engine
• Bad ignition ground wiring
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Section 03 TROUBLESHOOTING
REMEDY
• Flush reservoir and refill with fresh gas
• Check cylinder compression
• Check for crankcase leaks
• Check starting system
• Check spark plug condition
• Check fuel pump operation. Refer to
ENGINE MANAGEMENT
• Check fuel pressure regulator. Refer to
ENGINE MANAGEMENT
• Check air/fuel rail. Refer to ENGINE
MANAGEMENT
• Check air compressor system. Refer to
ENGINE MANAGEMENT
• Check RAVE valve for leaks
• Flush fuel from tank and refill with
fresh gas
REMEDY
• Refer to section ENGINE and check
the fault codes in the MPEM
REMEDY
• Check/verify heat range/gap/replace
• Check, refer to section ELECTRICAL
SYSTEM or ENGINE MANAGEMENT
on DI models
• Check timing mark, refer to section
ELECTRICAL SYSTEM
• Adjust oil injection pump
• Check wiring condition and proper
grounding of ignition coil
03-01-3