1
2
3
4
5
6
7
8
9
10
11
7-3
JC2
MAINTENANCE
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
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