Checking The Fuel Rail; Installing The Fuel Injector - Yamaha F150B Service Manual

Checking the fuel rail

1. Check the fuel rail. Replace the fuel rail if
cracked or deformed.
2. Check the fuel injector electrical perfor-
mance. See "Checking the fuel injector"
(5-24).

Installing the fuel injector

1. Install a new O-ring set a and a new
rubber seal b to the fuel injector c.
c
a
2. Install the fuel injectors c onto the fuel
rail d.
d
3. Install the fuel rail d onto the intake
manifold e.
4. Tighten the bolts f equally and gradu-
ally to the specified torque.
b
c
d
f
Fuel rail bolt f:
13 N·m (1.3 kgf·m, 9.6 ft·lb)
5. Install the wiring harness coupler a to
the holder.
a
6. Install the wiring harness by fitting the
projection of the holders g into the fuel
rail stay hole b.
Fuel injector
0
1
2
e
3
4
5
6
7
8
g
9
b
10
A
6-26