2011 Yamaha Motorsports RS Vector LTX GT Owners Manual - Page 122

2011 Yamaha Motorsports RS Vector LTX GT Manual

Get 2011 Yamaha Motorsports RS Vector LTX GT PDF manuals and user guides View all 2011 Yamaha Motorsports RS Vector LTX GT manuals

Page 122 highlights

Troubleshooting ESU14162 Engine turns over but does not start 1. Fuel system No fuel supplied to combustion chamber • No fuel in tank: Supply fuel. ↓ • Clogged fuel line: Clean fuel line. ↓ • Clogged injector (RS90GT / RS90LTGT / RST90GT): Ask a Yamaha dealer to check. • Clogged carburetor (RST90): Clean carburetor. G Fuel supplied to combustion chamber • Flooded engine (RS90GT / RS90LTGT / RST90GT): Crank engine or wipe spark plugs dry. • Flooded engine (too much choke) (RST90): Crank engine with throttle open or wipe spark plugs dry. Electrical system G 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 connectors and connect wire harness connectors together to bypass T.O.R.S. WARNING! Before bypassing the T.O.R.S., make sure that the throttle returns properly to the fully G 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. [EWS00561] RS90GT / RS90LTGT / RST90GT RST90 2. 3. G Compression Insufficient • Loose cylinder head nuts: Tighten nuts properly. 116

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
Troubleshooting
116
ESU14162
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
injector
(RS90GT /
RS90LTGT / RST90GT):
Ask a Yamaha dealer to check.
•
Clogged carburetor (RST90):
Clean carburetor.
●
Fuel supplied to combustion chamber
• Flooded
engine
(RS90GT /
RS90LTGT / RST90GT):
Crank engine or wipe spark plugs
dry.
• Flooded engine (too much choke)
(RST90):
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
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.
[EWS00561]
RS90GT / RS90LTGT / RST90GT
RST90
3.
Compression
●
Insufficient
•
Loose cylinder head nuts:
Tighten nuts properly.