Components - Yamaha FJR1300R Service Manual

COMPONENTS

1.Air cut-off valve
The air cut-off valve consists of a plunger that is mounted inside the core of a solenoid coil, and a
valve at the end of the plunger for opening and closing the air passage. Due to the force of a spring,
the valve is in constant contact with valve block A, and thus keeps the air passage open. As a result,
the air from the air cleaner passes through the air passage and flows into the reed valves of the cyl-
inders. When the current flows to the solenoid coil in accordance with a signal from the ECU, the
plunger in the core becomes attracted towards the coil. When this attraction force overcomes the
pressure of the spring, the valve is pulled in along with the plunger, comes in contact with valve
block B, and closes the air passage. The ECU controls the operation of the air cut-off valve so that it
operates in an optimal condition to suit the driving conditions.
1 Valve block A
2 Valve
3 Spring
4 Coil
1 - 31
FEATURES
5 Core
6 Valve block B
GEN
INFO
È To reed valve
É From air cleaner