Troubleshooting - Yamaha RS Venture RST9NJ Owner's Manual

ESU14167
Engine turns over but does not start
1. Fuel system
 No fuel supplied to combustion cham-
ber
• No fuel in tank:
Supply fuel.
↓
• Clogged fuel line:
Clean fuel line.
↓
• Clogged
RST1NTFY):
Ask a Yamaha dealer to check.
• Clogged carburetor (RST9N):
Clean carburetor.
 Fuel supplied to combustion chamber
• Flooded
RST1NTFY):
Crank engine or wipe spark plugs
dry.
• Flooded engine (too much choke)
(RST9N):
Crank engine with throttle open or
wipe spark plugs dry.
2. Electrical system
 Poor spark or no spark
• Spark plugs are dirty with carbon or
are wet:
Remove carbon or wipe spark plugs
dry. Replace if necessary.
↓
• Faulty ignition system:
Ask a Yamaha dealer to check.
↓
• T.O.R.S. malfunction:
Disconnect throttle switch connec-
tors and connect wire harness con-
nectors together to bypass T.O.R.S.
WARNING! Before bypassing the
T.O.R.S., make sure that the throt-
tle returns properly to the fully
injector (RST1NTF /
engine (RST1NTF /

Troubleshooting

closed position. The T.O.R.S. is an
important safety device; in the
case of a malfunction, take the
snowmobile to a Yamaha dealer
immediately for repair.
RST1NTF / RST1NTFY
1. Throttle switch connector
RST9N
1
1. Throttle switch connector
[EWS00562]
1
103