EXHAUST EMISSION CONTROL SYSTEM AND
COMPONENTS
Item
Abbreviation
ELECTRONIC FUEL INJECTION
EFI
ELECTRONIC CONTROL UNIT & PLUG,
SPARK
ECU
CRANKCASE 1 & HEAD, CYLINDER 1
PCV (Positive Crankcase 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 CALIFOR-
NIA REGULATIONS FOR NEW 1995 AND LATER OFF-HIGHWAY RECREATIONAL
VEHICLES AND ENGINES.
The abbreviations conform to the latest version of the SAE’s recommended prac-
tice 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 qual-
ified 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 inoperable
Consult Yamaha dealer
Clogged fuel line
Consult Yamaha dealer
Foreign matter in fuel filter
Consult Yamaha dealer
Dirty injector
Consult Yamaha dealer
Electrical System
Spark plug dirty with carbon, or wet
Clean carbon or wipe spark plug dry
Faulty ignition system
Consult Yamaha dealer
MAINTENANCE AND ADJUSTMENT
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
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Yamaha
Golf-Car
Company