Yamaha PW50 2013, Owner'S Manual

Page: 48 / 76

PERIODIC MAINTENANCE AND ADJUSTMENT
7-7
7
To install the spark plu g
1. Clean the surface of the spark
plug gasket and its mating sur-
face, 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
specified torque as soon as possible.
3. Install the spark plug cap.
EAU41104
Removin g the power re d uc-
tion plate
To obtain full engine performance ca-
pability, removing the power reduction
plate is required.
1. Remove the exhaust manifold by
removing the bolts. WARNING!
Always let the exhaust system
cool prior to touchin
g exhaust
components.
[EWA14582]
2. Remove the gasket.
3. Remove the power reduction
plate.
TIP
Store the power reduction plate with
the Owner’s Manual so that it is readily
available whenever you want to reduce
the engine power.
4. Install the exhaust manifold and its
new gasket by installing the bolts,
and then tighten the bolts to the
specified torque.
Spark plu g g ap:
0.6–0.7 mm (0.024–0.028 in)
Ti g htenin g torque:
Spark plug:
20 Nm (2.0 m·kgf, 14 ft·lbf)
1. Exhaust manifold bolt
1
1. Exhaust manifold
2. Gasket
3. Power reduction plate
Ti g htenin g torque:
Exhaust manifold bolt:
9 Nm (0.9 m·kgf, 6.5 ft·lbf)
1
2
3
U2SA80E0.book Page 7 Monday, June 3, 2013 5:25 PM