Fuel Pump Relay Inspection - Suzuki GW250 Service Manual

• Connect proper lead wires to the fuel pump lead wire coupler
(fuel pump side) and apply 12 V to the fuel pump (between
Y/R wire and B/W wire) for 10 seconds and measure the
amount of fuel discharged.
Battery + terminal
Battery - terminal
If the pump does not discharge the amount specified, it means
that the fuel pump is defective or that the fuel filter is clogged.
 Fuel discharge amount:
97.2 ml (3.3/3.4 US/Imp oz) or more/10 sec.
NOTE:
The battery must be in fully charged condition.

FUEL PUMP RELAY INSPECTION

Fuel pump relay is located to inside of the left frame upper
cover.
• Remove the frame upper cover assembly. (8-6)
• Remove the fuel pump relay 1.
First, check for insulation with the tester between terminals A
and B. Next, check for continuity between A and B with 12 V
voltage applied, positive + to terminal C and negative - to ter-
minal D. If continuity does not exist, replace the fuel pump relay
with a new one.
 09900-25008: Multi circuit tester set
 Tester knob indication: Continuity test ()
Y/R terminal
B/W terminal
FUEL SYSTEM AND THROTTLE BODY 5-5
Y/R Y/R
B/W B/W