Yamaha FJR1300(N) Manual

A SERVICE OF

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GEN

INFO

FEATURES

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

5

Core

6

Valve block B

È

To reed valve

É

From air cleaner