Headlight modulator affecting fuel pump? - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 5 Old 04-18-2010, 05:31 PM Thread Starter
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Headlight modulator affecting fuel pump?

As I'm sorting out my new (used) '03 DL1K, something I have noticed is that the high-beam modulator is causing the fuel pump to modulate as well.
I can't imagine that's too good for it.
When I switch to low beams, the fuel pump sound goes back to a steady whine.

I'll be checking out the install of the modulator to verify the wiring, of course.
Anyone else notice this effect?

Any recommendations?

I love Clifford, the big red dog.
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post #2 of 5 Old 04-18-2010, 05:35 PM
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One fix is to install headlight relays (eastern beaver). Going through the electrical system and cleaning switches and connectors is also a good idea.

-Tom (DL650AL2) (KA1TOX) (E-I-E-I-O)

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post #3 of 5 Old 04-18-2010, 05:35 PM
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An Eastern Beaver H4 Dual headlight Relay kit might help the problem by feeding the headlights from the battery instead of through the main harness with all the other stuff.
http://easternbeaver.com/Main/Bike_S...om.html#h4dual

DL650A K7
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post #4 of 5 Old 04-18-2010, 08:25 PM
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Doesn't sound right to me. Failing stator or R/R? Bad battery? Stick a voltmeter on it for your next ride.
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post #5 of 5 Old 04-18-2010, 10:33 PM
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As stated above I would take a hard look at the battery and charging system.

Keep the Rubber Side Down.
Jim
Present Rides
1986 XR600R,1986 VF1000R,1999 CBR1100XX,2006 CRF450X,2007 DL1000 V-Strom
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