The above items and the corresponding acronyms are provided in accordance with U.S.
EPA REGULATIONS FOR NEW NONROAD SPARK-IGNITION NONHANDHELD
ENGINES and the CALIFORNIA REGULATIONS FOR 1995 AND LATER SMALL
OFFROAD ENGINES.
The acronyms conform to the latest version of the SAE’s recommended practice docu-
ment J1930, “Diagnostic Acronyms, Terms, and Definitions For Electrical/Electronic
System”.
It is recommended that these items be serviced by a Yamaha dealer.
Item
9 Fuel Injection ........................................
9 Engine Control Unit ..............................
9 Throttle Position Sensor ......................
9 Crank Position Sensor .........................
9 Intake Manifold Air Pressure ..............
Sensor & Intake Temp. Sensor
9 O
2 Sensor ..............................................
9 Ignition Coil & Spark Plug ...................
9 Fuel Pump .............................................
9 Crankcase .............................................
9 Air Filter Assy. .....................................
9 Engine Temp. Sensor
(Muff & Spark Arrester) Option
FI
ECU
TP Sensor
CKP (Crank shaft Position)
Sensor
MAPT (Manifold Absolute
Pressure and Temperature)
Sensor
O2S
EI (Electronic Ignition)
FP
PCV (Positive Crankcase
Ventilation)
ACL
Acronym
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