Sea-doo SP Shop Manual page 24

Section 02 TROUBLESHOOTING
Sub-Section 01 (TROUBLESHOOTING CHART)
ENGINE MISFIRES, RUNS IRREGULARLY
OTHER OBSERVATION
Weak spark
Lean fuel mixture
Dry spark plug (except when
water fouled)
Rich fuel mixture
Fouled spark plug
Difficult to start
ENGINE OVERHEATS
OTHER OBSERVATION
Monitoring beeper sounds
continuously
ENGINE CONTINUALLY BACKFIRES
OTHER OBSERVATION
Weak spark
Ignition timing
Rotary valve
Carburetor
Engine
02-01-2
POSSIBLE CAUSE
• Fouled, defective, worn spark plugs
• Faulty rev limiter or ignition module
• Sheared flywheel key
• Low fuel level
• Stale or water fouled fuel
• Fuel filter dirty or restricted
• Carburetion dirty or out of adjustment
• Leaking crankshaft seal(s), intake or rotary
valve cover O-ring
• Restricted fuel valve
• Loose carburetor
• Partially closed choke
• Flame arrester dirty or restricted
• Carburetor adjustment or setting
• Loose main jet (if applicable)
• Rotary valve shaft seal leaking
• Oil pump adjustment
• Worn needle(s) and seal(s)
• Excessive rotary valve clearance
• Incorrect rotary valve timing
• Excessive rotary valve clearance
POSSIBLE CAUSE
• Restricted jet pump water intake
• Cooling system restriction
• Grounded temperature sensor or sensor
wire
POSSIBLE CAUSE
• Fouled, defective spark plugs
• Malfunction of rev limiter
• Incorrect setting
• Sheared flywheel key
• Incorrect timing
• Carburetion to lean
• Intake leak/crankshaft seal failure
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REMEDY
• Check/verify heat range/gap/replace
• Check, refer to section 07-02
• Check timing mark, refer to section 07-02
• Check/refill
• Check/siphon and refill
• Check/clean/replace
• Check/clean/adjust, refer to section 05-04
• Pressure check engine, refer to 03-02
• Check/replace
• Tighten carburetor(s)
• Check/adjust choke cable
• Check/clean/replace
• Check/clean/adjust, refer to section 05-04
• Check, refer to section 05-04
• Check/replace, refer to section 03-07
• Check/adjust, refer to section 06-03
• Check, refer to section 05-04
• Check, refer to section 03-07
• Check/adjust, refer to section 03-07
• Check, refer to section 03-07
REMEDY
• Check/clean
• Check/flush, refer to section 01-03
• Check/repair/replace
REMEDY
• Clean/replace
• Clean/replace, refer to section 07-02
• Check/reset, refer to section 07-02
• Check/replace, refer to section 07-02
and 03-04
• Check/reset, refer to section 03-07
• Check/adjust, refer to section 05-04
• Pressure check engine, refer to 03-02