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Old 03-31-2013, 02:44 PM   #259
GAS GUY OP
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Joined: Jul 2007
Location: Garden City, Michigan
Oddometer: 2,569
Quote:
Originally Posted by itsatdm View Post
I would think the minute one of the tubes start sucking air, the vacuum is lost for both sides of the tank?
Probably so, but the end of each tube goes to the very bottom of each side and is held there with a brass bolt with a hole in it that allows fuel into the tube so by the time one side sucks air the other should be very close to empty.

While testing, I isolated that possibility by disconnecting those lines and hooking a vacuum gauge to that side while running the bike and no vacuum was present even though I had a good vacuum on the engine vacuum side of the pump.
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