Fuel Injector Inspection; Throttle Body Inspection - Yamaha WaveRunner FX140 Manuel D'entretien

FUEL
FUEL INJECTION SYSTEM

Fuel injector inspection

CAUTION:
The throttle bodies should not be disas-
sembled unnecessarily.
1. Check:
• Injector
Dirt/residue → Clean.
Damage → Replace.
2. Measure:
• Fuel injectors resistance
Out of specification → Replace.
Digital circuit tester:
YU-34899-A/90890-03174
Fuel injector resistance:
14.0–15.0 Ω at 20 °C (68 °F)
3. Check the operation of the fuel injector
using the "Stationary Test" of the Yamaha
Diagnostic System.

Throttle body inspection

1. Check:
• Throttle body
Cracks/damage → Replace the throttle
bodies.
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