Yamaha F115A - Checking the Fuel Filter; Measuring the Fuel Pressure (High-Pressure Fuel Line)

3-3
E
INSP
ADJ
FUEL SYSTEM
2. Check:
• Plastic locking tie
Loosen → Retighten or replace.
3. Check:
• Low-pressure fuel line
Cracks/damage/leaks → Replace.
Refer to “LOW-PRESSURE FUEL
LINE” on page 4-26.
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CHECKING THE FUEL FILTER 3
Check:
• Fuel filter element
• Fuel filter cup
Clogs/cracks/leaks → Replace.
Foreign matter → Clean.
Refer to “FUEL FILTER” on page 4-29.
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MEASURING THE FUEL PRESSURE
(HIGH-PRESSURE FUEL LINE)
3
Measure:
• Fuel pressure (high-pressure fuel line)
Out of specification → Check the high-
pressure fuel line.
Measuring steps
(1) Install the fuel pressure gauge onto the
pressure check valve.
(2) Turn the main switch to on, and then
measure the fuel pressure.
Fuel pressure
(high-pressure fuel line)
300 kPa (3.0 kg/cm
2
, 44.1 psi)
Fuel pressure gauge ................. 1
YB-06766 / 90890-06786
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