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In Reply to: Wizard '99 lawn tractor AYP9209A99 air bubbles in fuel line posted by M. Brant on Saturday, May 10, 2008:
M yreason for asking if the bubbles were in the line before or after the fuel pump was to possibly determine the source of the bubbles. If the bubbles were visible before the fuel pump, then the line probably has a crack in it , abd the air is being sucked into the line by the pump. If the bubbles are only visable after the pump, then the pump is adding air to the fuel and might need a new pump.