2011 Yamaha Motorsports Grizzly 125 Automatic Owners Manual - Page 74

2011 Yamaha Motorsports Grizzly 125 Automatic Manual

Get 2011 Yamaha Motorsports Grizzly 125 Automatic PDF manuals and user guides View all 2011 Yamaha Motorsports Grizzly 125 Automatic manuals

Page 74 highlights

replace it if necessary. 1 2 3 4 5 6 7 8 9 10 11 1. Spark plug wrench 1 Specified spark plug: NGK/CR7HSA 3. Measure the spark plug gap with a wire thickness gauge and, if necessary, adjust the gap to specification. To check the spark plug 1. Check that the porcelain insulator around the center electrode of the spark plug is a medium-to-light tan (the ideal color when the ATV is ridden normally). TIP If the spark plug shows a distinctly different color, the engine could be operating improperly. Do not attempt to diagnose such problems yourself. Instead, have a Yamaha dealer check the ATV. 2. Check the spark plug for electrode erosion and excessive carbon or other deposits, and 8-9 1. Spark plug gap Spark plug gap: 0.6-0.7 mm (0.024-0.028 in) To install the spark plug 1. Clean the surface of the spark plug gasket

  • 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
8-9
1
2
3
4
5
6
7
8
9
10
11
To check the spark plug
1.
Check that the porcelain insulator around the
center electrode of the spark plug is a medi-
um-to-light tan (the ideal color when the ATV
is ridden normally).
TIP
If the spark plug shows a distinctly different color,
the engine could be operating improperly. Do not
attempt to diagnose such problems yourself. In-
stead, have a Yamaha dealer check the ATV.
2.
Check the spark plug for electrode erosion
and excessive carbon or other deposits, and
replace it if necessary.
3.
Measure the spark plug gap with a wire thick-
ness gauge and, if necessary, adjust the gap
to specification.
To install the spark plug
1.
Clean the surface of the spark plug gasket
1. Spark plug wrench
1
Specified spark plug:
NGK/CR7HSA
1. Spark plug gap
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)