Assembly And Installation - Yamaha WR426F Handbuch

VALVES AND VALVE SPRINGS
Combination of cylinder head and valve
lifter
1. Combination:
Cylinder head mark
a (color)
NOTE:
When you purchase a cylinder head, you can-
not designate its size. Choose the valve lifter
that matches the above chart.

ASSEMBLY AND INSTALLATION

1. Apply:
2. Install:
NOTE:
Make sure that each valve is installed in its
G
original place, also referring to the painted
color as follows.
Install the valve springs with the larger pitch
G
c facing upward.
d Smaller pitch
4 - 40
For this combination, match the paint
color on the cylinder head with that on
the valve lifter according to the chart
below.
Combination
Valve lifter mark
b (color)
Blue
Yellow
Purple
Molybdenum disulfide oil
G
Onto the valve stem and valve stem
seal.
Valves 1
G
Valve spring seats 2
G
Valve stem seals 3
G
Valve springs 4
G
Valve spring retainers 5
G
Intake (middle) a: light blue
Intake (right/left) b: white
Exhaust: not paint
ENG
Blue
Yellow
Black
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