2007 Yamaha Motorsports Vino Classic Owners Manual - Page 41

2007 Yamaha Motorsports Vino Classic Manual

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PERIODIC MAINTENANCE AND MINOR REPAIR 3. Remove the spark plug cap. 4. Remove the spark plug as shown, with a spark plug wrench available at a Yamaha dealer. 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 vehicle is ridden normally). NOTE: If the spark plug shows a distinctly different color, the engine could be defective. Do not attempt to diagnose such problems yourself. Instead, have a Yamaha dealer check the vehicle. 2. Check the spark plug for electrode erosion and excessive carbon or other deposits, and replace it if necessary. Specified spark plug: CR7E (NGK) wire thickness gauge and, if necessary, adjust the gap to specification. Tightening torque: Spark plug: 13 Nm (1.3 m • kgf, 9.4ft • lbf) 1 1 NOTE: If a torque wrench is not available when installing a spark plug, a good estimate of the correct torque is 1/4~1/2 turn past finger tight. However, the spark plug should be tightened to the specified torque as soon as possible. 4. Install the spark plug cap. 5. Install the partition and the panel. 2 3 4 5 6 7 8 9 ZAUM00** 1. Spark plug wrench Spark plug gap: 0.7 ~ 0.8 mm (0.028 ~ 0.031 in) 2. Clean the surface of the spark plug gasket and its mating surface, and then wipe off any grime from the spark plug threads. 3. Install the spark plug with the spark plug wrench, and then tighten it to the specified torque. To install the spark plug 1. Measure the spark plug gap with a 6-7

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PERIODIC MAINTENANCE AND MINOR REPAIR
3.
Remove the spark plug cap.
4.
Remove the spark plug as shown,
with a spark plug wrench available
at a Yamaha dealer.
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 vehicle is
ridden normally).
NOTE:
If the spark plug shows a distinctly dif-
ferent color, the engine could be defec-
tive. Do not attempt to diagnose such
problems yourself. Instead, have a
Yamaha dealer check the vehicle.
2.
Check the spark plug for electrode
erosion and excessive carbon or
other deposits, and replace it if nec-
essary.
Specified spark plug:
CR7E (NGK)
To install the spark plug
1.
Measure the spark plug gap with a
wire thickness gauge and, if nec-
essary, adjust the gap to specifi-
cation.
1
ZAUM00**
1.
Spark plug wrench
Spark plug gap:
0.7 ~ 0.8 mm (0.028 ~ 0.031 in)
2.
Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the
spark plug threads.
3.
Install the spark plug with the spark
plug wrench, and then tighten it to
the specified torque.
Tightening torque:
Spark plug:
13 Nm (1.3 m • kgf, 9.4ft • lbf)
NOTE:
If a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4~1/2 turn past
finger tight. However, the spark plug
should be tightened to the specified
torque as soon as possible.
4.
Install the spark plug cap.
5.
Install the partition and the panel.