60L3D1X
32
Checking the low-pressure fuel
pump and high-pressure fuel pump
1. Disconnect the starter relay lead (brown
lead)
1
to prevent the engine from start-
ing.
2. Turn the engine start switch to ON.
3. Listen for the operating sound of the
high-pressure fuel pump
2
. Replace if
there is no sound.
NOTE:
• After the engine start switch is turned to
ON, the high-pressure fuel pump will oper-
ate for 5 seconds.
• Check the operation of the low-pressure
fuel pump
3
using the “Stationary test” of
the Yamaha Diagnostic System.
* Change step 3 and the note in the F225
service manual to that mentioned above.
S69J8300
S69J8310J
Fuel control system
1
2
3
4
5
6
7
8
9
https://www.boat-manuals.com/
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