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YFZ450X fuel problem

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I have a 2010 YFX450X that is giving me the blues. After It runs awhile and I kill it or shut it off it will not restart right away due to the system not getting fuel. The fuel pump does not run to prime the system. The bike has a power commander V on it and I have bypassed it to test but the problem still exist.

After the bike sits awhile and I turn the ignition on the pump will then prime and bike will run.

Any advice would be appreciated, no codes have been tripped and due to its inconsistent nature it will be very difficult to have any success with a dealer working on it.

Thanks. Brian

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