Yamaha F50A - Page 131

62Y3A11
5-4
1
2
3
4
5
6
7
8
I
Symptom: Engine can be started, but does not remain on.
• Check the fuel system.
• Check the ignition system.
• Check the compression pressure of power unit.
Is the vent
screw open?
Water or resi-
due?
Good operat-
ing condition?
Kinks or fuel
leakage?
Replace the pri-
mary fuel pump.
Check for water or residue in
the fuel filter.
Open the fuel vent screw.
Replace the respective parts.
Clean the fuel system from the
fuel tank to the fuel filter.
Check the fuel hose for kinks or
fuel leakage.
Check the carbure-
tors.
No
Yes
Yes
Yes
Yes
No
No
No
Check the primary
pump operation.
Check that the fuel vent screw of the fuel tank is open.
Troubleshooting