Troubleshooting - Yamaha YDRA Owner's/Operator's Manual

MAINTENANCE
EXHAUST EMISSION CONTROL SYSTEM
1
AND COMPONENTS
2
• CARB. ASSY., LH., JT.,
CARBURETOR 2 & JT.,
CARBURETOR 1
3
• T.C.I. MAGNETO ASSY. &
PLUG, SPARK
• CRANKCASE 1 & HEAD,
CYLINDER 1
4
• AIR FILTER ASSY.
• MUFF., 2
5
The above items and the
corresponding acronyms are
provided in accordance with U.S.
6
EPA REGULATIONS FOR SMALL
NONROAD ENGINES and the
CALIFORNIA REGULATIONS FOR
NEW 1995 AND LATER OFF-
7
HIGHWAY RECREATIONAL
VEHICLES AND ENGINES.
8
The acronyms conform to the latest
version of the SAE's recommended
practice document J1930,
"Diagnostic Acronyms, Terms, and
9
Definitions For Electrical/Electronic
System".
It is recommended that these items
10
be serviced by a Yamaha dealer or
other qualified mechanic.
11
8-3
Item Acronym
CARB (Carburetor)
El (Electronic Ignition)
PCV (Positive Crankcase
Ventilation)
ACL (Air Cleaner)

TROUBLESHOOTING

If the vehicle's engine won't start,
use the following chart:
Cause
Fuel System
No fuel in tank
Fuel shutoff valve Open fuel shutoff
closed
Clogged fuel
line
Foreign matter
in fuel filter
Clogged
carburetor
Electrical System
Spark plug dirty
with carbon, or
wet
Faulty ignition
system
Remedy
Fill fuel tank
valve
Clean fuel line –
Consult Yamaha
dealer
Clean fuel filter –
Consult Yamaha
dealer
Clean carburetor –
Consult Yamaha
dealer
Clean carbon or
wipe spark plug
dry
Consult Yamaha
dealer
JW1