Yamaha YW50P Service Manual page 199

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S,°°A,S,S,EM IE'Ecl
I
3. Voltage
• Connect the Pocket Tester (DC20V) to the
bulb socket connector.
Tester (+) Lead->Gray lead (~
Tester (-) Lead--~Black lead (~
• Turn the main switch to
" * "
• Check for voltage (12V) on the "Gray" lead
at bulb socket connector.
g
b
,BI q~l L
,•
MEETS
SPECIFICATION
(12V)
I This circuit is good.
Y P 8 0 6 0 2 7
5.
If t h e fuel g a u g e fails t o o p e r a t e .
1. Fuel sender
Remove the fuel sender from the fuel tank.
Disconnect the fuel sender coupler from
the wireharness.
Connect the pocket tester (~ xl0) to the
fuel sender coupler lead.
Tester (+) lead->Green terminal (~
Tester (-) lead--~Black terminal (~
• Check the fuel sender for specificated re-
sistance.
~ J l
Float position
Specificated
resista nce
UP (~
4~10~
DOWN (~
90~100£~
~ 7
BOTH MEET
SPECIFICATION
OUT OF SPECIFICATION
4. Wiring connection
• Checkthe entire signal system for connec-
tions.
Refer to the "WIRING DIAGRAM" section.
OUT OF SPECIFICATION
I Replace the fuel sender.
7-40

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