Pioneer 1200 Maintenance Service Manual page 122

11
TROUBLESHOOTING AND ELECTRICAL SYSTEM: FE400 ENGINE
TROUBLESHOOTING GUIDE
SYMPTOM
Engine turns but fails to start.
Engine overheats.
Engine pre-ignites.
Loss of engine power.
Spark plug fouls repeatedly.
Troubleshooting Guide continued on next page...
Page 11-2 2003 Pioneer 1200/1200SE Gasoline Vehicle Maintenance and Service Manual
POSSIBLE CAUSES
Fuel tank is empty
Fuel line or filters clogged
Fouled spark plug
Spark plug wire damaged or loose
Loose Wire connection at ignition coil or
RPM limiter
Ignition coil or RPM limiter failed
Engine flooded with fuel as result of
excess choking
Kill circuit grounded
Fuel pump malfunction or failure
Fan screen is partially blocked or plugged
Governor is improperly adjusted
Carburetor is too lean; check main jet size
Excessive carbon deposits on piston head
or in combustion chamber
Spark plug heat range is incorrect
Unsuitable or contaminated fuel
Exhaust valve is restricted with carbon
deposit
Muffler or exhaust pipe restricted with
carbon or other substance
Ignition coil failed
Air filter is dirty or clogged
Governor is improperly adjusted
Throttle linkage out of adjustment
Low cylinder compression
Spark plug failed
Restricted fuel flow
Torque converter is not backshifting
properly
Incorrect plug
Spark plug wire is damaged
Unsuitable fuel, or incorrect (rich) fuel
mixture
Dirt entering combustion chamber
Troubleshooting Guide
REFER TO
Section 14 – Fuel System
Section 14 – Fuel System
Section 13 – FE400 Engine
Section 13 – FE400 Engine
Section 11 – Troubleshooting and
Electrical System: FE400 Engine
Test Procedures 14, 15, and 16
Section 11 – Troubleshooting and
Electrical System: FE400 Engine
Test Procedures 14, 15, and 16
Pioneer 1200 Owner's Manual, Controls
and Indicators. See Choke.
Section 11 – Troubleshooting and
Electrical System: FE400 Engine
Test Procedures 14, 15, and 16
Section 14 – Fuel System
Section 13 – FE400 Engine
Section 14 – Fuel System
Section 14 – Fuel System
Section 13 – FE400 Engine
Section 13 – FE400 Engine
Section 14 – Fuel System
Section 13 – FE400 Engine
Section 15 – Exhaust System
Section 11 – Troubleshooting and
Electrical System: FE400 Engine
Test Procedures 14, 15, and 16
Section 14 – Fuel System
Section 14 – Fuel System
Section 14 – Fuel System
Section 13 – FE400 Engine
Section 13 – FE400 Engine
Section 14 – Fuel System
Section 17 – Torque Converter
Section 13 – FE400 Engine
Section 13 – FE400 Engine
Section 14 – Fuel System
Section 13 – FE400 Engine