2013 Yamaha Motorsports Road Star Silverado S Owners Manual - Page 58

2013 Yamaha Motorsports Road Star Silverado S Manual

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PERIODIC MAINTENANCE AND ADJUSTMENT 3. Check each spark plug for electrode erosion and excessive carbon or other deposits, and replace it if necessary. Specified spark plug: NGK/DPR7EA-9 DENSO/X22EPR-U9 To install a spark plug 1. Clean the surface of the spark plug gasket and its mating surface, and then wipe off any grime from the spark plug threads. 2. Install the spark plug with the spark plug wrench, and then tighten it to the specified torque. Tightening torque: Spark plug: 18 Nm (1.8 m·kgf, 13 ft·lbf) EAU19681 Canister (for California only) 4. Measure the spark plug gap with a wire thickness gauge and, if necessary, adjust the gap to specification. 7 TIP 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. 3. Install the spark plug cap. 1. Spark plug gap This model is equipped with a canister to prevent the discharging of fuel vapor into the atmosphere. Before operating this vehicle, make sure to check the following: ● Check each hose connection. ● Check each hose and canister for cracks or damage. Replace if damaged. ● Make sure that the canister breather is not blocked, and if necessary, clean it. Spark plug gap: 0.8-0.9 mm (0.031-0.035 in) 7-11

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PERIODIC MAINTENANCE AND ADJUSTMENT
7-11
7
3. Check each spark plug for elec-
trode erosion and excessive car-
bon or other deposits, and replace
it if necessary.
4.
Measure the spark plug gap with a
wire thickness gauge and, if nec-
essary, adjust the gap to specifica-
tion.
To install a spark plug
1.
Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the
spark plug threads.
2. Install the spark plug with the
spark plug wrench, and then tight-
en it to the specified torque.
TIP
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 speci-
fied torque as soon as possible.
3.
Install the spark plug cap.
EAU19681
Canister (for California only)
This model is equipped with a canister
to prevent the discharging of fuel vapor
into the atmosphere. Before operating
this vehicle, make sure to check the fol-
lowing:
●
Check each hose connection.
●
Check each hose and canister for
cracks or damage. Replace if dam-
aged.
●
Make sure that the canister breath-
er is not blocked, and if necessary,
clean it.
Specified spark plug:
NGK/DPR7EA-9
DENSO/X22EPR-U9
1.
Spark plug gap
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Tightening torque:
Spark plug:
18 Nm (1.8 m·kgf, 13 ft·lbf)