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8-3
JC2
EXHAUST EMISSION CONTROL SYSTEM
AND COMPONENTS
Item Abbreviation
• ELECTRONIC FUEL EFI
INJECTION
• ELECTRONIC CONTROL ECU
UNIT & PLUG, SPARK
• CRANKCASE 1 & HEAD, PCV (Positive Crankcase
CYLINDER 1 Ventilation)
• AIR FILTER ASSY. ACL (Air Cleaner)
• MUFFLER MUFF., 2
• CARBON CANISTER CC
• INVERSION VALVE IV
The above items and the
corresponding abbreviations are
provided in accordance with U.S.
EPA REGULATIONS FOR SMALL
NONROAD ENGINES and the
CALIFORNIA REGULATIONS FOR
NEW 1995 AND LATER OFF-
HIGHWAY RECREATIONAL
VEHICLES AND ENGINES.
The abbreviations conform to the
latest version of the SAE’s
recommended practice document
J1930, “Diagnostic Acronyms, Terms,
and Definitions For
Electrical/Electronic System.”
It is recommended that these items
be serviced by a Yamaha dealer or
other qualified mechanic.
TROUBLESHOOTING
If the vehicle’s engine will not start,
use the following chart:
Cause Remedy
Fuel System
No fuel in tank Fill fuel tank
Fuel pump Consult Yamaha
inoperable dealer
Clogged fuel Consult Yamaha
line dealer
Foreign matter Clean fuel filter –
in fuel filter Consult Yamaha
dealer
Dirty injector Consult Yamaha
dealer
Electrical System
Spark plug dirty Clean carbon or
with carbon, or wipe spark plug
wet dry
Faulty ignition Consult Yamaha
system dealer
MAINTENANCE
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