Buell 2007 FIREBOLT Service Manual page 376

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Test 4.13 (Part 1 of 2)
YES
No trouble
found. Review
symptoms.
YES
Move negative (-) probe to
GY/O wire on Terminal 30 of
ignition relay. Measure voltage
during first two seconds after
key ON. Is voltage greater
than 1 VDC?
YES
Locate and repair poor
connection between bat-
tery and ignition relay.
Run fuel pressure test as described under
4.13 FUEL PRESSURE
sure should remain steady at 49-51 PSI
(338-352 kPa). Does it?
No pressure. Low pressure.
Check voltage drop between
battery positive (+) and Termi-
STOP
nal D (-) on pump side of con-
nector [89] during first two
seconds after key ON. Is volt-
Go to Test 4.13
age greater than 1 VDC?
(Part 2 of 2).
Move negative (-) probe to GY
wire on Terminal 87 of ignition
relay. Measure voltage during
first two seconds after key ON.
Is voltage greater than 1 VDC?
Locate and repair poor
connection between ignition
relay and fuel pump.
Replace ignition relay.
TEST. Fuel pres-
YES
YES
NO
Flush out fuel cell.
See 4.39 FUEL
PUMP.
NO
2007 Buell Firebolt: Fuel System
High pressure.
Check for faulty fuel
pump and replace.
See 4.39 FUEL
PUMP.
NO
Check for restricted
pump inlet screen. Is
screen restricted?
NO
Check for faulty fuel
pump and replace.
See 4.39 FUEL PUMP.
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