Checking The Fuel Pump - Yamaha XT660R Service Manual

G/W B
B R/L
THROTTLE BODY ASSEMBLY
EAS00819

CHECKING THE FUEL PUMP

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Gasoline is extremely flammable and under
certain circumstances there can be a dan-
ger of an explosion or fire. Be extremely
careful and note the following points:
• Stop the engine before refueling.
• Do not smoke, and keep away from open
flames, sparks, or any other source of
fire.
• If you do accidentally spill gasoline, wipe
it up immediately with dry rags.
• If gasoline touches the engine when it is
hot, a fire may occur. Therefore, make
sure the engine is completely cool before
performing the following test.
1. Check:
• fuel pump operation
M MMM
a. Fill the fuel tank.
b. Put the end of the fuel hose into an open
c. Connect a battery (DC 12 V) to the fuel
Positive battery lead → red/blue 1
Negative battery lead → black 2
d. If fuel flows out of the fuel hose, the fuel
L LLL
+
7 - 28
WARNING
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container.
pump coupler as shown.
pump is OK. If fuel does not flow, replace
the fuel pump.
L LLL L L LLL L L LLL L
FI
M MMM M M MMM M MMM
L LLL L L LLL L LLL