Join Date: Jun 2008
Location: South Coastal Oregon
The shop manual for the 900 states that the fuel filter is integral to the pump and cannot be cleaned, but some owners have reported ignoring that and either tried cleaning the filter or removed the existing one and replaced it with a filter from ebay or other source. It is possible that the existing filter is blocked with foreign matter which cannot be removed by cleaning. Also the Amazon-bought replacement pump may be defective.
The Kawi shop manual for the 900 has been available online and has a series of diagnostic steps for testing the fuel pump, but none that I could find for testing fuel pump pressure. Basic electrical test - make certain that the battery is fully charged (12.8v is specified), connect a voltage tester to the pump leads or terminals. Obviously should be zero volts with the ignition switch off. Presumably the pump should be fully installed. Switch the ignition on and for three seconds the voltage at the fuel pump should be 12.8, then it should drop to zero. Should be able to hear the pump run for the initial three seconds. If the voltage is low or non-existent for the test the manual suggests checking the fuel pump relay.
'07 Kawasaki Vulcan 900 Classic LT
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